E. Rousseau New Classic Soprano Sax Mouthpiece NC4 Made of hard rubber The E Rousseau New Classic Soprano Sax Mouthpiece was developed to complement the highly successful 'R' series It has been designed with an entirely new facings to meet the demands of the world's top performers Features include an enhanced chamber with a redesigned baffle and sidewalls to provide an even more centered tone, a unique tip rail for a more precise fit reed fit, and a longer shape for a more secure fit and easier tuning