Some customers want their titanium chastity cage to be exactly like their resin test cage. And prefer the lock mechanism on resin test cage because this kind of lock mechanism has no two side pins therefor it has no pinching problem which caused by those two pins.This demand can be fulfilled here.You can get a completely same metal version cage as your resin test cage.
Here is a works. Highly recommend select titanium material because stainless steel cage with this kind of lock mechanism design would be pretty heavy.
