Overview Reviews Product Description J.Michael JMTU5 Tuba Mouthpiece Features: Outer Diameter: 49.1mm Inner Diameter: 31.8mm Throat Diameter: 8.6mm Product Videos Custom Field Product Reviews Write a Review Write a Review × J.MICHAEL J.Michael JMTU5 Tuba Mouthpiece Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *