Selmer Focus Bb Clarinet MouthpieceDeveloped with the greatest clarinet experts, our mouthpieces will accompany you in all your musical situations. The perfect balance between tone and roundness will seduce you as much as its ease of play. Focus, a closed opening facilitating the play brings to this mouthpiece the timbre, the centering while keeping the flexibility. Table opening: 1. 05 mm. Table length: 23 mm. Chamber: trapezoidal. Mouthpiece cushion included.