Beginners Guide To Chastity Part 1: Fitting and Measuring for a Chastity Device

Beginners Guide To Chastity Part 1: Fitting and Measuring for a Chastity Device

*This guide is part of a comprehensive series on male chastity. Keep your eyes peeled for part 2, coming soon*

When deciding to purchase a chastity device, one of the most common requirements (especially among beginners) is that the device is completely secure. Most people search for an inescapable device because it heightens, or corresponds with the fantasy that they are truly at the mercy of their keyholder and that without him/her present, they have absolutely no choice but to stay locked up and denied. Fantasy never quite aligns with reality though and many people can become disillusioned with the idea of the chastity device, when they realise that they can probably escape.

There is simply no such thing as a chastity device that is 100% secure for 100% of men and many mass produced “one-size-fits-all” devices will be escapable for a large proportion of men. This makes sense when you think about it more deeply. The male genitalia varies (sometimes dramatically) between one man and another. I am not just talking about the length of the penis here, but the circumference at different points down the shaft, whether he is a grower or a shower and whether he is cut or uncut. On top of this, the penis is extremely flexible and it can be squashed, squeezed, stretched and compressed out of the smallest of gaps and the tightest of rings. It can even retract into the body. That is just the way it is designed. Of course, similar applies with the testicles and scrotum, which can also vary in size and shape. The testicles might sit high and tight on some men and hang low on others. For most men, the scrotum will tighten and relax as conditions change. With such differences, it is difficult for the one-size-fits-all device, to comfortably and securely fit every man.

Rather than experiencing disappointment at your ability to wiggle free from your chastity device, I recommend focusing your attention on what chastity is really about. You cannot force somebody into chastity (fantasy play aside) and it should be a mutual experience than you have both consented to participate in. The chastity device should be a constant, but pleasant reminder of your predicament and your desire to please and obey your keyholder. This requires a level of mutual trust and honesty and if you find yourself lying or withholding information from your keyholder (by masturbating secretly or not obeying the rules set out) then perhaps you need to re-evaluate the conditions of your chastisement with your keyholder and discuss whether chastity is right for you. Chastity and orgasm denial can be enjoyed in many different ways and you want to find out what works best for you. Check out my “Beginners Guide to Chastity and Orgasm Denial” for more information on this, or if you simply need new ideas, my “Orgasm Denial Games and Ideas” post may help.

Instead of focusing on finding an inescapable cage, your main priority should be to find a comfortable cage. This is especially true if you are interested in long term chastity. Lots of people believe that they should choose the smallest, tightest fitting device, in the hopes that they will not be able to escape, but this is counterproductive in long term chastity. If you have to remove the device and leave it off for extended periods of time due to discomfort or pain, then the chastity device can lose its psychological power and you could lose interest.

Sizing yourself for a comfortable, long term chastity device is not easy. For most men, it takes a good amount of trial and error to find their most suitable device. This can be frustrating and costly, because chastity devices don’t run cheap. There are some tips and tricks to help reduce the chances of purchasing an incorrect fit, but even these are not an exact science and mistakes can be made.

Measuring for a comfortable chastity device:

Measuring for the Main Ring:

The most important measurement to get as accurate as possible is the size of the main ring. (The ring that circles your testicles and penis) An incorrect fit here can cause a whole host of problems later. If this ring is too large, the cage will slip down, or fall off entirely. If the ring is too small, you will suffer discomfort and pain, fluid retention and cutting off the blood supply to your genitals. The best fit is one that feels snug enough to avoid slipping, but loose enough that blood can flow and you feel comfortable.

There is a huge difference between having “blue balls” (The slang term to describe an ache in your testicles due to being denied orgasm) and actually having blue testicles. If your testicles are turning red, purple or blue, the main ring is too tight for you and you should remove it immediately and try the next size up.

It is very difficult to get an accurate measurement for the main ring, using a tape measure. Some people recommend tying some string around your genitals and measuring that, but even this is not ideal. The best method I have discovered for getting an accurate measurement is to pay a visit to a sex shop, or a hardware store and purchase a selection of rings, starting from roughly 2 inches in diameter and reducing in size by ¼ of an inch. Make sure the rings are made from a solid material (metal or plastic) as stretchy materials will give you an inaccurate result. You also want to make sure you choose smooth, rounded rings that will cause no irritation during wear. Starting with the largest, work your way down the sizes until you find one that fits snugly, but causes no pain, redness or swelling to your genitals. When you have whittled your way down to a few rings, wear each one for a few days solid (including at night), to get a better idea how that ring feels in every condition. Some mass produced devices, like the CB6000, come with multiple main rings of varying sizes, these may help lots of men find a good fit, but is not guaranteed (you could be between sizes).

(Click here to go read my reviews for all of the chastity devices pictured in this article)

(Note: Erections, especially nocturnal, can cause some discomfort, because your genitals swell and the ring begins to constrict you. With the right size ring, you might experience some mild discomfort from erections, but you should not be experiencing pain. If you feel an intense burning under your testicles, or a deep aching in your testicles and stomach, then it is time to change the ring)

Measuring for the Cage Length:

The length of the cage is somewhat important. Ideally you want a cage that is just long enough to allow the tip of your penis to come to rest at the end of the cage. If your cage is too small, it could make you feel like your penis is being constantly “held back” inside the body a little, your glans may bulge uncomfortably through the end hole, or your penis may bunch up towards the base. For uncircumcised males, the foreskin may protrude from the end of the device and get pinched. A cage that is too long will not cause any major issues, but it could cause urine to get splashed inside the device, which builds up moisture and odour.

To measure the length of your penis for a chastity device, you can take a ruler and place it on the underside of your flaccid penis, measuring from tip to base. Do not press the ruler into your scrotum, as this will give you an incorrect measurement. Just allow the ruler to make contact with the skin there. You should be completely flaccid when taking this measurement, but not the “retracted inside the body because it’s cold or scared” type of flaccid. For accurate results, take this measurement several times throughout the day, to find your most common length. When you have found your measurement, deduct a ¼ to a ½ inch off the final results and this will be your ideal length for a cage.

Measuring for the Cage diameter:

Measuring for the cage diameter is less important, but a correct fit here does have some benefits, like increased comfort and making less mess inside the cage when you pee. Some people recommend a cage that hugs the penis, making contact with the skin all the way around, but not feeling tight. Personally I recommend the cage be looser than this, because it allows air to circulate. A clammy, sweaty penis builds up odour faster and dark, damp conditions can cause issues with infection. Also bear in mind that your penis will naturally pull back, or retract into your body during movement or in certain conditions and if the cage was tight to begin with, your penis may not be able to move forward again and so it stays bunched up. Bunching can cause skin to bulge or become trapped and pinched. I guess the choice is yours whether you prefer a snug fitted cage, or one that allows some wiggle room, but we prefer the latter, even if it does mean he can get semi erect.

The Importance of Spacers:

Another important measurement to be aware of is the gap between the main ring and the cage section. With most mass produced, trapped ball devices, you will be supplied with a few spacers and these little objects are used to increase or decrease the gap between ring and cage. The reason this measurement is important (especially for those looking for a secure device) is that it is often these unassuming little spacers that help reduce your ability to remove the cage. The smaller the gap between cage and main ring, the more difficult it becomes to slip your penis and testicles out of the device. Of course, opting for the smallest spacer immediately may cause some discomfort. It’s all about finding the snuggest, comfortable fit for you.

If purchasing a secure chastity device is still of utmost importance to you, there are some things you can do to help reduce the chances of escape from your chastity device. One of the first is to go right ahead and purchase a custom built chastity device that has been made to fit your exact specifications, but even this is not a guarantee (I refer you back to my comment about how flexible the penis can be). Another option is to consider purchasing one of the many add-ons available (make sure the one you choose fits your particular device), which aim to reduce or stop you from pulling your penis backwards. (Chastity belts may also help to stop the cage from sliding forward, making it harder to slide your penis out). Add-ons can be as simple as the KSD-G3 (a wedge shaped piece of plastic that helps prevent pull out in CB devices), to the more extreme. Some cages come with deep urethral plugs and even options to secure a Prince Albert piercing. I recommend careful consideration when deciding whether to purchase these add-ons; the last thing you want is to have to remove your device due to tearing, irritation or infections. I will discuss these add-ons in more detail in another instalment to my chastity series.

Ready to shop? Take a look at the wide range of chastity devices available here at Uberkinky.co.uk

26 replies
  1. Adam
    Adam says:

    Hi, there’s this chastity cage that I really want to get however it’s 3 inches in length and I am 4.5 inches in length when limp. I have a 4.5 inch long chastity cage now and sometimes my dick is a good inch away from the end of the cage however this might be because of the weight of the cage and it sliding slightly down my penis. There is a bit of wiggle room with chastity cages involving length and you can just adjust the cage to sit a bit further down your penis but I just wondered if you would recommend me getting this smaller chastity cage? I wish there would be more options out there for more endowed men. Thank you.

    Reply
  2. Naka
    Naka says:

    Hi,

    I’ve been owning a CB6k since september 2015 but I’ve never been able to wear it for more than a few hours. I put it on every morning but I feel pain at the basis of my balls, where they are in contact with the ring. It’s like it’s irritating the skin.

    It is very annoying. I would like to be able to wear it for more than a few hours. It’s not unusual for me to begin feeling pain when at work or during the night. I thought it was because I wasn’t used to it but after 6 months of wearing it as much as I can, I think there might be another problem.

    What do you think? Do you have any suggestion?

    Reply
    • GrittyWoman
      GrittyWoman says:

      Finding the right ring can literally be a pain in the balls. If you have been trying to wear your device for 6 months and you cannot keep it on any longer than a few hours, I think I would say the ring is not a good fit for you. Perhaps it is too small, the wrong shape (some men find oval rings more comfortable, while others prefer round) or it does not have rounded or flat edges (again, it is a personally choice as to what feels best). One thing I would suggest is applying some lubricant underneath the ring two or three times a day. This can help to reduce chafing. If this doesn’t work, I would honestly suggest thinking about getting a different cage. Unfortunately, it can be trial and error finding the most comfortable one for you. I hope you find one soon and can enjoy chastity without suffering pain. Best of luck to you.

      Reply
      • Naka
        Naka says:

        Hey, thanks for your answer. I put my CB6K on today and I felt the same pain I usual. When I removed it I saw something was wrong with my balls. They had been pinched hard and it happened where the ring was in contact with the skin. I don’t really understand how the ring could pinch the skin but anyway, I’m going to try to find out. I’m going to do whatever it takes to be able to enjoy chastity successfully.

        Reply
        • GrittyWoman
          GrittyWoman says:

          I know the CB6000 is an open ring and you need to complete the circle using the connector, but the hinged areas are sitting above the penis and not below the testicles. so I am not entirely sure why it is nipping you. There are a few possibilities; 1) The ring is rubbing as you go about your daily business, chafing your skin until it is raw (this happens with many devices and can be reduced by finding a better fitting ring and/or using some lubricant throughout the day) 2) The ring is damaged or not finished very well and there is a ridge or seam that is scratching your skin. I have a feeling it is the first, as it is pretty common with a lot of one-size-fits-all devices. We have tried a few things over the years to combat it, including plasters (band-aids), lubricant and even wrapping some padding around the ring. Some help and some cause more discomfort. If you are especially active during the day, it can really irritate!

          Reply
          • Naka
            Naka says:

            I found out what’s wrong.

            If you look at a CB6K ring you can see it’s not always “full” of plastic. At the middle of the ring, there is less plastic which creates a whole on the whole lenght of the ring. When I wear my CB6K, the balls are pushed against the ring and they get trapped in that cavity. Then, as I move, the skin gets pinched. I have to find a way to fill that cavity so that the skin of my balls can not get trapped inside.

  3. Santos
    Santos says:

    I am new to this and have the male chastity device A163. It comes with three 3 rings sizes. 1.5″ 1.75″ and 1.85″. Was wandering what is the best way to determine the proper size of ring to use. The 1.85″ all most seems too big. I have not tryed the 1.5″ because it looks like it would be too small. I tryed the 1.85″ ring with the cage and I was almost able to pull the device off with out unlocking it. The 1.75 does seem to fit nice but when I got an erection, it did take a while for it to go down. So would it be safe to say the 1.75″ is the ring to use or should I try the smaller one?.

    Reply
    • GrittyWoman
      GrittyWoman says:

      It can take longer for an erection to go down while wearing a chastity device, but so long as you are not experiencing too much pain, then it should be okay. My partner finds it uncomfortable to get erections inside his cage, but it is not intensely painful. Eventually, his erection goes down. You can use ice packs, or get up and walk around, to help the erection go down quicker. If you find the 1.75 ring comfortable at all other times and are not experiencing intense pain with erections, then this sounds like the ideal ring for you. You can always try the 1.5 ring for a while (make sure to keep the keys handy, just in case you find it is too small) and this way you will know for sure.

      Reply
  4. brad
    brad says:

    I’ve been looking at the cb-x chastity curve which is 3 3/4 length with 1.5 inside width. It would be a snug fit for me and Def wouldn’t allow growth but it’s the only one I can find in my size that wouldn’t be to big(like the 6in birdcage) what would you recommend?

    Reply
    • GrittyWoman
      GrittyWoman says:

      It is extremely hard to recommend a product that would definitely work for you, as every guy is different (in size, shape and preference). My partner really likes the CB6000s as he also likes a snug fit. However, the CB6000 short measures only 2.5 inches in length and might be too short for you. In his experience, a snug fit is more comfortable. Others prefer a little growing room. You can use your flaccid measurements to match as closely as possible, but your experiences with a cage may vary based on so many factors; the size, the shape, the material, the design and so on. It can often be trial and error finding your perfect cage. Alternatively, you could have one made to fit. These are usually more expensive though.

      Reply
  5. Doc Holiday
    Doc Holiday says:

    Ill keep simple
    Bought jail house
    Fits great one down fall that i am very worried bout
    Ball ring 1.75 is a soft fit but when everything locked together slides down penis shaft
    The worried part
    I want to go down the size to 1.5
    Ive tried but then fear kicks in when it makes me errect
    Not gonna get off kinda fear
    So should i goto 1.5 and wing it
    Also if i do try this what things can i do to take it off if it gets hard to wear
    Example cold ice etc.

    Reply
    • GrittyWoman
      GrittyWoman says:

      I would first advise you to try the smaller ring during the day, when you are at home. Leave the cage off and just wear the ring by itself if possible (if this helps reduce your worries). If you manage to wear the ring for a few hours without any pain, swelling or discoloration (your penis/balls turning red or purple) then this is the first good sign that the ring fits you well. If you do experience pain, swelling or discolouration while your penis is soft, then this is a sign the ring is too small and you should stick with the larger one.

      If the ring fits you well when you are soft, then the next step is to try wearing it while you are erect. Painful erections (especially nocturnal erections) are extremely common for men who wear chastity devices 24/7, especially in the first few weeks/months while you get used to it. However, it can take some time to find the right sized ring and some experimenting is in order. The looser the ring, the more likely the cage will slip down your flaccid penis, but it will hurt less when erect. A tighter ring will fit more securely, but yes, it is probably going to hurt more when you get hard. Your goal is to find a good balance between security (fit) and comfort.

      If you do get erect with the ring on, try not panic. As mentioned, pain is very common (especially with metal rings), but as soon as your erection subsides, you should be able to remove the ring. It is rare to become stuck inside a cock ring (to the point where you need emergency medical help), but it is certainly not impossible. The only way to lower this risk (almost completely) is to choose a cage made from a material that you can break in an emergency (such as polycarbon or silicone). Metal rings are harder to remove by yourself if something goes wrong.

      There are a number of tips you can try to attempt to get rid of an erection:

      1) Using an ice pack
      2) A cold shower, directed at your genitals
      3) Get up and walk around (this is especially helpful for night time erections)
      4) Empty (or attempt to empty) your bladder (again, this is especially helpful for night time erections)
      5) Distract yourself. Keep busy and try not to think about it (easier said than done).

      If any of the above fails, you could also try applying lubricant to help the ring slip and slide.

      I hope this helps.

      Reply
  6. Rob
    Rob says:

    I have been doing chastity for the last year now and still having problems finding the right fit. I have a cb6000 and during periods of several days the bottom of my balls hurt and at times the ring leaves a red mark around my balls, BUT the ring still slips down and squishes my balls. I feel like I should go to smaller ring but that gets too tight. Any suggests?

    Reply
    • GrittyWoman
      GrittyWoman says:

      You can always try the smaller ring and see if it helps. This way, you will at least find out which of the two rings feel the most comfortable long term. My partner also gets red ring marks and sometimes chafing and soreness underneath his balls and around where the ring sits (especially if he has been moving around a lot during the day). This is quite common I think. You can reduce the risk of chafing by applying some lubricant a few times a day, which will help the ring slide a little, instead of rubbing. If he is in any degree of pain, we remove the device for a while. If the device is still causing pain with the smaller ring, it might be that the CB6000 doesn’t suit you and a different cage might work better. Finding the right cage is very much a trial and error experience.

      Reply
  7. joe
    joe says:

    I purchased a metal cb6000 and for some reason I keep getting little zits and warts on my penis could it be a reaction from the metaland if so could you recommend a cage

    Reply
    • GrittyWoman
      GrittyWoman says:

      Hi Joe. I am a little confused about your chastity device. The CB devices are not available in metal. There is a CB device available in the CB Designer Collection that has a metal/chrome finish, but this one is made from polycarbonate, just like the other CB devices. Is it the Designer Edition cage that you have? It would help if you could send a picture of your cage, for us to take a look at.

      Many of the quality, branded chastity devices are made from body safe materials, such as polycarbonate or medical grade stainless steel. These materials are not likely to cause an allergic reaction. However, it is very common to experience pimples and chafing when wearing any chastity cage. This is not usually caused by an allergy (unless you purchase a cage made from inferior materials). Instead, it is usually caused by the rings, rubbing or pressing against your skin. This can cause chafing, irritation and ingrown hairs (the latter is especially true if you shave the area. Trimming might be a better choice instead). Genital warts are caused by a virus (HPV virus) and are most commonly passed from person to person during sexual contact. Your chastity cage will not give you warts, but it may irritate any that are already present. There are a number of things that can cause bumps in the genital area (such as ingrown hairs and sebaceous cysts), but I am not a medical expert. I would recommend visiting a doctor to find out for sure, especially if these bumps are not going away, or causing you pain. If you want to send a picture of your cage to my email address grittywoman (at) gmail (dot) com, I will be able to advise you further. I also recommend visiting and chatting to the guy behind ruffledsheets.com. Ruffled sheets owns/reviews many chastity devices and I consider him an expert when it comes to chastity/chastity devices. He will be able to advise you too.

      If you are experiencing irritation though, I recommend applying lubricant to the area where the ring will sit against your skin. This will help the ring to slide over your skin as you move, reducing friction and irritation. You may need to apply this 2 or 3 times a day and I recommend doing it before you feel any discomfort. I also recommend trying a slightly larger ring, as this will reduce pressure against your skin and reduce the chance of discomfort (finding a chastity cage that fits perfectly can be quite tricky, especially with these “one size fits all” devices). If you do become sore, it is best to remove the cage and leave it off until your skin has healed completely.

      Reply
      • joe
        joe says:

        it turns out it was a knock off piece of metal that looked like a CB 6000 but its just a knockoff CB it’s made of an inferior metal so I took it off and if you can recommend a newer cage cuz I’m looking to make it a permanent situation with the occasional come out clean it maybe have sex maybe not I just enjoy wearing them

        Reply
        • GrittyWoman
          GrittyWoman says:

          I’m sorry to hear your cage was a knock off, but I am glad you found out now, before the discomfort put you off chastity. Recommending a great chastity cage is difficult, because each male has his own preferences. For example, me and my partner love the CB6000s, but it you visited another chastity cage reviewer, he might have a different preference. Out of all the cages we have tried though, the CB range has been the most comfortable/best fit for my guy.

          My main tips for purchasing a new cage are as follows:

          1) Read plenty of reviews. I have 5 or 6 reviews here, but you will also find chastity reviews at ruffledsheets.com and at sex toy stores like Lovehoney and Uberkinky.

          2) Purchase from a reputable retailer. Chastity cages are often half the price at places like ebay, but as you discovered, many of them are fakes. Fakes will often be made from inferior materials and the build quality is usually poorer.

          3) Pay close attention to the materials that the cages are made from. Even at reputable retailers, you will find cages that are made from materials that are unsuitable for 24/7 wear. Iron and steel cages may be good for wearing for short periods of time, but this material can rust. Stainless steel is much less likely to rust, making this a good material for every day wear.

          3) If you are from the UK and you can find your perfect chastity device in store, I highly recommend shopping here at Lovehoney. Lovehoney have one of the best returns policies. You can return an item to them, within 365 days, for ANY reason (even if you just don’t like it) and they will fully refund or exchange for another item (depending on what you want to do). I have done a lot of shopping at Lovehoney and I have had to return the odd item myself. They do honour this policy. No questions asked. When you are spending a lot of money on a product, this will help you shop with more confidence.

          I hope this helps. If you need any more advice, just get in touch.

          (Please note: affiliate links are used within this comment. If you wish to support my work, at no extra cost/hassle to you, please consider shopping through these links).

          Reply
  8. Hopeful DA
    Hopeful DA says:

    I’ve been having a bit of a problem with the fit of my cb6000s. So my balls generally sit pretty high, they only really drop far in the late evening, so when putting on the ring (I use the biggest ring they send) it can be quite a tight fit but not painful. When I try put the tube on the bottom of the tube is left pressing against the skin where my penis and balls meet, after a couple of days wear this leads to it causing a sore in the area.

    Just wondered if you would have any advice?

    Reply
    • GrittyWoman
      GrittyWoman says:

      Are you using the largest spacer in the pack? The bigger the spacer, the more gap between the cage and the ring. If you are, then I would suggest applying a little water based lubricant to the area once or twice a day. This will hopefully stop the cage from chafing your skin. We have tried using plasters (band aids) in the past, which can work, but can also cause irritation itself. If none of these things work, you may have to take off the cage now and then to let the sore area heal. It might then be possible that your skin will toughen up over time. If it carries on, I would personally suggest trying a new cage. The CB6000s does have a tight fit between the cage and ring. Other cages have a little more breathing room.

      Reply
      • HopefulDA
        HopefulDA says:

        Thanks for the reply, yeah I’ve tried lubing it and plasters none of which seem to work. I think I’ll just hav to try another cage

        Reply
  9. Maria
    Maria says:

    Security of chastity belt is the most important for me. He now wears CB 6000 and KSD-G3. I think about PA piercing and metal chastity belt. We talked . He wants frenum piercing, not PA. Tomorrow, we’ll do it. My sister gave me Lori chastity device for frenum piercing. I’ll fulfill his desire.

    Reply
  10. Michael
    Michael says:

    It is very important to find a chastity belt that will fit well. CB 3000, 6000 simply did not answer me. I have suffered for months. My nocturnal erections are strong and it happened that part of the head of the penis pass through opening for urination. It’s hurting my penis, then I could not wear a chastity belt for days. It is frustrating my wife and me. I searched on the internet and after months of torture I found Fetish Felix CB 100.
    The tube has a hole of 8mm to urinate, is smooth and not infringed on my penis, during the nocturnal erections. After that I was completely devoted to my wife.

    Reply
  11. sissygirl
    sissygirl says:

    Thank you my problem was the ring was to small and the spacer to big a little adjustment and a perfect comfort fit with no escape

    Reply

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