The Bari Hard Rubber Bb clarinet mouthpiece is built to produce a warm, sonorous tone that will satisfy the most seasoned of professional clarinet player and make any beginner clarinet player standout from the crowd! With the Bari Hard Rubber Bb clarinet mouthpiece's consistent response in extreme registers, anyone can play as high or as low as they'd like to with no issue at all. To top it off, the Bari Hard Rubber Bb clarinet mouthpiece is designed to improve intonation in the high register to achieve a pristine sound.