BG CLARINET THUMB REST CUSHION. Soft and durable these cushions protect the thumb from forming painful calluses. Available for standard or adjustable thumb rests. Fits both oboe and clarinets.
A21 small will fit older Buffet clarinets without the adjustable thumbrest and most Yamaha Clarinets
A23 large will fit new Buffet adjustable rest and the new Yamaha YCL255 thumbrest.