BQLZR Black Bb Sax Clarinet Mouthpiece Patches Pads Cushions 0.8 mm Thickness Fit Soprano Saxophone/trumpet/Clarinet t's a great helper for beginners to lay a solid foundation. Stabilize the tube so that you can show your performance skill better. These high quality mouthpiece patches provide a more comfortable resting place for the top teeth and take away annoying vibration.