Bb Clarinet Mouthpieces Boehm system Vandoren СМ4018 5RV "13 Series" with beak versions Profile 88. The time-proven standard for professional musicians worldwide designed by Robert Van Doren. Quality and tradition.
The “13 series” mouthpiece was developed specifically for American clarinetists using A440 pitch.
A=440. The Beak: Profile 88. Tip Opening: 106.5 (1/100mm). Medium Short Facing. Works best with Vandoren #3-#4 Reeds.