Chastity devices, like cages, are a lot of fun to explore alone or with your partner, but being well-informed about the size, security, and mechanics of everything is very important.
Choose what’s right for you and learn how to use it!
So you’re curious about chastity devices, more specifically penis cages. Choosing the right size is key to making the experience comfortable and enjoyable. Here is a simple and easy-to-use guide for beginners to help you find a device that suits your body.
Start with the most important thing: knowing your measurements
If you only remember one thing, do this:base ring size is the most important measurement. This ring surrounds the base of the genitals (behind the penis and scrotum) and is what keeps everything in place.
How to measure it:
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Use a soft tape measure or a piece of string.
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Wrap it snugly around the base of your genitals, where they meet your body.
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Don’t overtighten – the goal is for it to be tight but not restrictive.
If the ring is too small, it can cut off circulation (not good). If it is too large, the device may move or fall. A good rule of thumb is to be able to comfortably slide one finger under the ring.
Tip: Some people use their erect genital circumference and add 10% to 12% to estimate the base ring size.
Other useful measures
Once you’ve sorted your base ring size, here are some other things to consider:
1. Flabby length (top)
Measure from where your penis connects with your shaft to the tip (with the foreskin retracted, if you have one). This will help you choose the appropriate cage length.
2. Circumference of the flaccid shaft
Wrap the tape around the middle of your flaccid shaft. This gives you an idea of how wide the cage should be.
3. Cage space (ring distance)
This is the small space between the base ring and the cage. Too small can pinch; too big can cause it to come off. Most manufacturers use a standard gap (~10mm), which works for most beginners.
Sizing advice for first-time users
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Start a little bigger: If in doubt, choose a device with a slightly larger base ring and cage. You can always make it smaller later.
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Measure several times: Your flaccid size changes throughout the day. Take measurements at different times and use the smallest consistent size as a guide.
putting it in
Typically (but not always), chastity devices encompass the balls and shaft, so putting them on may require a little fiddling to get right.
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Gently pass one testicle through the base ring.
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Then the other.
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Pass your penis through the ring.
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Wait until the excitement calms down, then place the cage and lock it in place.
Optional: use a small amount of lubricant or coconut oil. Some people also use the “stocking method” to help guide the penis into the cage more easily.
Final thoughts
Choosing your first chastity device can be a little overwhelming, but it doesn’t have to be. Focus on getting the right base ring size, take your time measuring, and don’t worry about finding the “perfect” device on the first try. Everyone’s body is a little different and that’s totally okay.
Do you have questions or need help? Reach out: we’ve all started somewhere.
Armed with your new knowledge, take a look at some of Funtasia’s products. cage options here
If you are curious to learn a little about the history of chastity devices, you can look at that here!!
Good luck and happy exploring!
Additional reading
This Reddit post is incredibly knowledgeable and even recommends MORE further reading if you’re still feeling a little unsure – we highly recommend it