These mouthpieces offer incredible value for your money, professional quality mouthpiece with a student mouthpiece price tag! George M. Bundy Signature Clarinet mouthpieces are made from molded hard rubber and are precision machine faced for consistently high quality. The Bundy Eb Contra-alto Clarinet mouthpiece fills the need for a student mouthpiece with professional features, such as hand-adjusted baffles for rich, centered tone quality and balanced rails for even response.