Sevanda Ergo Silicone Device

Measuring For Your Cage

This cage requires two different measurements, one for your penis length, and one for your cock-and-ball ring diameter. Measuring before every purchase will help you find a safe, comfortable fit. First, grab a tape measure and measure the length of your completely flaccid penis to find your chastity tube length, allowing a little room for potential penis growth while caged. Next, wrap the tape measure around the base of your penis and scrotum while flaccid, pulling it comfortably tight to find your ring circumference, and divide this measurement by pi (3.14) for your diameter.

How To Wear The Cage

To wear this device, first slip the ring over your penis and balls, then place the tube over your flaccid penis until the connecting pins between the tube and ring align, applying water-based lubrication as necessary if this proves difficult. When the pins meet, ensure the barrel lock is fully inserted and securing the cage together before locking it with the key.

Staying Safe While Caged

As you will spend hours, or even days at a time locked up in your chastity device, it's important to follow these safety instructions, and also to keep your penis clean. First up—ensure the cage fits comfortably. If well-fitted, it should not dig in, feel painful, or cause chafing. If you feel any pain or numbness, or notice redness or purple swelling, this means your cage is too small and should be removed immediately, and you should wear it with a bigger ring size.

Second, follow strict key management. You must always be able to remove the device immediately, if necessary. Keep a spare key in a safe place at all times, and if you leave the house, carry a key on your person. With these instructions, chastity can be practiced long-term, or even permanently without causing any health issues. ED or pain are both indicators of an overly tight fit. Penis shrinkage has been reported to occur after long lock-up periods, and this is thought to occur when you go without erections for extended periods, but it will return to its normal size immediately after taking the cage off.