“ULTRA” Model Supervised by Steven Mead This mouthpiece is supervised by the world-renowned euphonium player, Steven Mead. 【SM4U】 Inner rim diameter: 26.00 mm Rim width: 6.3 mm Bore size: 7.40 mm Soft tone with good control balance. "ULTRA" has a solid cup and rim, and possesses the power and expressiveness to maximize the rich resonance and warm tone of the euphonium. This euphonium mouthpiece features a large cup and a deep, warm tone. Silver-plated, large shank Retail price: ¥35,200