All of our hardware in hardened and chromed steel, our buckles are roller type, with locking capability, our leather is hand cut. Now with removable straps so the cup can be worn. The muzzle sits on the face, not in the mouth. This muzzle is designed as a humiliation piece, it is not a restrictive gag per se.  The point is to humiliate the wearer and perhaps stuff the cup with something Pleasent/Unpleasent.