Outlet: Trombone Mouthpiece: Underpart trumpet leadpipe 4mm rim diameter and large

4mm rim diameter and large shank

and a traditional stepped backbore

and exceptional craftsmanship

Looking for a great value on a quality trombone mouthpiece

C - Traditional medium bowl cup

Outlet: Trombone Mouthpiece: Underpart trumpet leadpipe 4mm rim diameter and largeBuild, expand, or refine your mouthpiece setup while enjoying significant savings with our Outlet Trombone Mouthpiece Underparts. These underparts may have minor cosmetic blemishes, handling marks, engraving imperfections, plating flaws, light scratches, or other non performance related defects. Some may have been used for demonstrations, fitting sessions, photography, trade shows, testing, or customer returns. Each underpart has been carefully