YAMAHA-Mouthpiece Trombone 51, large shank

YAMAHA-Mouthpiece Trombone 51, large shank, rim inner diameter Ø 25.23, cup volume & shape: standardw, rim contour: standard, throat: 6.92mm, backbore: semi-broad, relatively large inner rim diameter with large cup volume for a dark sound,standard euphonium model with a large backbore. Produced using the most advanced computer design and manufacturing technology, our Standard Series mouthpieces feature unmatched precision, smooth attack, secure control, and easy playability. They have the ideal weight for all-around usage and are available in over 100 configurations.