TUBA MOUTHPIECE 65

"Yamaha Model 65. Relatively small inner rim diameter and medium cup volume for easy playability. Excellent balance throughout the instrument’s range, with a fairly dark tone. Similar to a Bach 25. Inner Diameter = 30.95mm. Contour = standard. Thickness = semi-thin. Cut Depth = standard. Throat = 8.35mm. Backbone = semi-wide."