This mouthpiece is slightly smaller and shallower, making it easier to play in the high register! Schilke This is a Schilke mouthpiece, loved by players of all genres. The inner rim diameter is slightly larger than a Bach 10-1/2. The rim is flat and thick. The rim apex is slightly inward, sloping gently towards the outer edge of the rim. The outer edge of the rim is somewhat distinct, a unique Schilke rim design. The outer rim diameter feels similar to a Bach 10-1/2. This makes it soft on the mouth, and the design is less likely to cause pain or fatigue even with hard pressing. The cup has a gentle UV cup shape, with a depth similar to a Bach E cup. The throat area just before the bore is slightly thicker, creating a double-cup shape like the Stork Vacciano model. The throat is #27 (3.66mm). The backbore is similar to a Warburton 9. The inner side of the shank end, about 1.2mm, is finished with a gentle slicing, like a Schilke 14A4a. This mouthpiece has good response and a sharp sound, yet it resonates with a thick and full tone. Recommended for pop, big band, and horn sections. Also recommended for piccolo trumpet, which requires high notes, and for use in wind ensembles for pop music. - Model Name: Schilke 7B4 - Material: Silver-plated - Size: For Trumpet Thank you for viewing. Trumpet Mouthpiece Trumpet trumpet mouthpiece Schilke