YiFeng Stainless Steel Male Chastity Cage Device Belt Restraint Men Bondage Fetish ZCS146 (40mm Ring);

Descriptions:
This item is made of stainless steel.
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).

Features:
Total length (including ring): 55mm.
Cage: 30mm in length, 33mm in diameter.
Ring Size: 40mm / 45mm / 50mm (for your choice).