Selmer Focus Bb Clarinet MouthpieceThe Focus clarinet mouthpiece from Selmer Paris is made from hard rubber with a trapezoidal chamber. The mouthpiece has a smaller 1. 05 mm tip opening with a 23mm table length. All of these design features create mouthpiece that improves control with flexibility through the entire range of the instrument. The Focus clarinet mouthpiece also balances the distribution of spatial volume to facilitate the natural tone of the instrument and mouthpiece.