A Beginners Guide to Cock Cages.

Chastity devices like cages are super fun to explore by yourself or with a partner, but being well informed about sizing, safety and the mechanics of it all is super important!

Choosing what's right for you and learning how to wear it!

So you’re curious about chastity devices, more specifically cock cages. Picking the right size is key to making the experience comfortable and enjoyable. Here’s a simple, beginner-friendly guide to help you find a device that fits your body.

Start with the Most Important: Knowing your measurements

If you only remember one thing, make it this:the base ring size is the most important measurement. This ring goes around the base of your genitals (behind the penis and scrotum), and it’s what holds everything in place.

How to measure it:

• Use a soft measuring tape or a piece of string.

• Wrap it snugly around the base of your genitals where they meet your body.

• Don’t pull too tight—snug but not restrictive is the goal.

If the ring is too small, it can cut off circulation (not good). If it’s too big, the device may move around or fall off. A good rule of thumb is being able to slide one finger under the ring comfortably.

Tip: Some people use their erect genital circumference and add about 10–12% to estimate their base ring size.

Other Handy Measurements

Once you’ve got your base ring size sorted, here are a few other things to consider:

1. Flaccid Length (Topside)

Measure from where your penis connects to your body to the tip (with foreskin retracted, if you have one). This helps you choose the right cage length.

2. Flaccid Shaft Circumference

Wrap the tape around the middle of your flaccid shaft. This gives you an idea of how wide the cage should be.

3. Cage Gap (Ring Distance)

This is the small space between the base ring and the cage. Too small can pinch; too big can lead to slipping out. Most manufacturers use a standard gap (~10mm), which works for most beginners.

Sizing Tips for First-Time Wearers

• Start slightly bigger: If you’re in doubt, choose a device with a slightly larger base ring and cage. You can always go smaller later.

• Measure multiple times: Your flaccid size changes throughout the day. Take measurements at different times and use the smallest consistent size as your guide.

Putting It On 

Usually (but not always) chastity devices encompass the balls and shaft, so putting them on can take some fiddling around to get right! 

1. Gently ease one testicle through the base ring.

2. Then the other.

3. Pull your penis through the ring.

4. Wait until any arousal settles down, then attach the cage and lock it in place.

Optional: Use a small amount of lube 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 feel a bit overwhelming, but it doesn’t have to be. Focus on getting the base ring size right, take your time measuring, and don’t stress about finding the "perfect" device on your first try. Everyone’s body is a little different, and that’s totally okay.

Have questions or need help? Reach out—we’ve all started somewhere.

Armed with your new knowledge check out some of Funtasia's cage options here

If you're curious to learn a bit about the history of chastity devices you can check that out here!!

Good luck, and happy exploring!

Further reading

This reddit post is incredibly informed and even recommends FURTHER further reading if you’re still feeling a bit unsure: we highly recommend it