YAMAHA-Mouthpiece Heavy Bass-Trombone 59-GP

YAMAHA-Mouthpiece Heavy Bass-Trombone 59-GP, rim inner diameter Ø 27.22, cup volume & shape: standard, rim contour: standard, throat: 7.25mm, backbore: semi-broad, relatively thin rim, rich sound even on pedal tones, voluminous cup for solid lows and plenty of power. GP Series has been created especially for professionals who require superior quality from their mouthpiece. The GP Series features an innovative shape and extra-heavy gold-plate finish for players who prefer a focused, concentrated tonal core.