One of our best sellers here at Alto Music, the KELLY Trumpet Mouthpieces are made entirely of lexan material. Kelly mouthpieces are designed to make playing brass instruments easier.  The terrors of braces, college and professionals facing inclement weather marching, or during the holiday season, well worry no more!!! Kelly mouthpieces were designed to meet the demands of brass players from beginners to professionals by making it easier and more comfortable to play.  The Kelly tuba 18, 24AW and 25 cup sizes are patterned after the Bach® series, while the KELLYberg® is patterned after the Conn-Helleberg® series. All cup sizes are sampled by our professional staff and are adjusted to produce our final, comfortable, easy-blowing mouthpieces. All of our mouthpieces are identical to exacting standards. FEEL the Comfort!. Once you get your hands on one of these mouthpieces, you will realize why they have become so popular!