The Chamber Locking Chastity Device is designed to keep your guy's penis under lockdown. The device uses one of four (included) rings, of different sizes which is placed over the cock and balls. You then place the cock into the fitting cage and lock him down. Each joint features a thin sleeve to avoid pinching and the device is almost metal-free (making it ideal for travel). What you get with the Chamber is a cock cage, 4 cock and ball rings (of different sizes), two locks and keys.