Tuba Mouthpiece Cup diameter: 33.50 mm, Rim: 7.75 mm, Bore: 8.90 mm, Developed together with the tuba section of the Five Lakes Silver Band", The unique MB7 rim allows large lip movements during vibrato, Features very..."

Tuba Mouthpiece Inner cup diameter: 33.7 mm, Deep cone shape, wide, Rim thickness: 7.0 mm, Round inner and outer rim, Bore: 8.5 mm, Additional mass for a powerful sound in the middle and lower registers, Very precise...

Tuba Mouthpiece Cup diameter: 33.50 mm, Rim: 7.70 mm, Bore: 8.30 mm, Largest tuba mouthpiece in the Mercer & Barker range, Fabulous mouthpiece with plenty of power in the lower register, producing phenomenal pedal...