Ponzol Custom Model Alto Saxophone MouthpiecePeter Ponzol Custom Model Alto Saxophone Mouthpiece. Precision machined from Delrin and hand faced. These are bright and powerful mouthpieces with complexity and depth in the tone. The size of this mouthpiece is unique. The body size of this mouthpiece is the same as many metal mouthpieces, so it feels smaller in the mouth than a typical rubber or synthetic mouthpiece. It physically feels like a metal mouthpiece in the mouth but has the vibrational