The product is made of biosourced resin.
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).
LONG: 60mm in length, 35mm in diameter. SHORT: 48mm in length, 34mm in diameter.
4 Rings: 36mm / 40mm / 45mm / 50mm.
Air hole: 3.
100% Brand New.
Comfort, Hypoallergenic and durable.
It is very secure, designed by human body tectonics
Easy to use and clean.