Suitable for Trombone, Baritone and Euphonium,designed for trombone enthusiasts and beginners. | Trombone Mouthpiece can reach higher notes and lower notes. | Size: 12C,Silver Plated, Well made, diameter and depth appear to match quality mouthpiece, very clear tone. | Euphonium mouthpiece is much easier to reach and hold. | Package Include:1xTrombone Mouthpiece