YAMAHA-Mouthpiece Trombone Signature GP -Alain Trudel-

YAMAHA-Mouthpiece Trombone Signature GP -Alain Trudel-, rim inner diameter: 25.23mm, rim contour: semi-round, rim thickness: semi-thick, cup depth: deep, throat: 7.15mm, backbore: narrow, the Trudel mouthpiece offers players a big warm sound, and a rim and cup size well suited for orchestral as well as solo use. 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.