Willie's MUSE B1 Silver Plated SP Large Bore Bass Trombone Mouthpiece ★ Cup Diameter: 28.25mm ★ Throat: 7.9mm ★ Material: Brass ★ Beautiful condition, tried only a few times after purchasing new. There are slight insertion marks on the shank, but the appearance is almost like new. Retail Price: ¥36,300 【 MUSE Series 】 MUSE is a new standard model. A new lineup that "elegantly brings out the charm of the trombone as you wish." The B1 is the largest size for bass trombones, and it feels similar to other companies' 1-1/4G mouthpieces. It has a light blowing feel from high to low notes, excellent control, and is, above all, "easy to play." It has no quirks and is suitable for all-around use.