Vincent Buck Trombone Mouthpiece for Thick Pipe Rim & Cup Gold Plated Finish 6 1/2AL [Special Order Item]

Model: 6.1/2AL Cup Depth: Moderately Deep Diameter (mm): 25.40 Rim Thickness: Medium (fairly round rim) Description: Same cup as 6.1/2AL for tubules, throat and backbore Therefore, the throat and back bore are smaller than the 6 1/2A for thick pipes mentioned above.