Model supervised by Steven Mead "ULTRA" This is a mouthpiece supervised by world-renowned euphonium player Steven Mead. [SM4U] Rim inner diameter 26.00 mm Rim width 6.3 mm Bore size 7.40 mm Soft tone with good control balance. The "ULTRA" features a cup and rim with solid volume, and possesses the power and expressiveness to maximize the rich resonance and warm tone of the euphonium. This is a euphonium mouthpiece characterized by a large cup, producing a deep and warm tone. Silver-plated, large shank List price ¥35,200