Selmer Density Bb/A Clarinet MouthpieceWith outstanding projection, a centered, dense tone, and immediate response, the Density mouthpiece delivers on every front. Its generous reed compatibility gives players freedom of choice, while its easy control makes it a reliable allyregardless of skill level or repertoire. The result: a rich, stable, colourful sound that encourages natural, confident musical expression. Key Features: Table opening: 1. 20 mm Table length: 24 mm Chamber: trapezoidal