This item is made of silicone & Silicone.
The cage and ring are locked together with the lock. Once the lock is locked there really is no escape (unless you have the key).
Cage: about 60-80mm in length, 43mm in diameter.
2 Different Sizes Ring for your choice:
Small Adjustable Ring Size: 38mm / 41mm / 44mm (Adjustable Ring).
Large Adjustable Ring Size: 45mm / 50mm / 55mm (Adjustable Ring).
100% Brand New.
Comfort, Hypoallergenic and durable.
It is very secure, designed by human body tectonics
Easy to use and clean.