Marcinkiewicz 1 1/2G Mouthpiece BassTrombone
Marcinkiewicz 1 1/2G Mouthpiece BassTrombone, Mouthpiece for Bass Trombone, Outer diameter: 39.12 mm, Inner diameter: 27.84 mm, Cup depth: 30.56 mm, Bore: 7.14 mm, Total length: 80.52 mm, Silver-plated, Comparable to Bach 1 1/2 G