B40 Lyre mouthpiece for Bb clarinet that ensures easy blowing especially in upper register and provides round, rich tone. With its long facing, Profile 88 beak and tip opening of 117.5 (1/100mm), it provides an impeccable intonation, crisp and accurate articulation, and unrivalled response. This mouthpiece works best with Vandoren #2 to #3.5 reeds.