YAMAHA-Mouthpiece Bass Trombone 58

YAMAHA-Mouthpiece Bass Trombone 58, rim inner diameter Ø 26.84, cup volume & shape: standard, rim contour: standard, throat: 7.25mm, backbore: semi-broad, medium cup and rim for easy playability through the low and middle registers, crisp attack with outstanding flexibility. 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.