KELLY Small-shank Trombone/Baritone Mouthpieces are made entirely of lexan material. Our KELLY-6-1/2AL and KELLY-12C cup sizes are industry standards. All mouthpieces are sampled by our professional staff and adjusted to produce our final, comfortable, easy-blowing mouthpieces. Our mouthpieces are identical to exacting standards. FEEL the Comfort!
Made entirely of Lexan® material