Marcinkiewicz Bass Trombone EBT3, Mouthpiece for bass trombone, Ernie Tack Signature Model, Outer diameter: 39.12 mm, Inner diameter: 28.35 mm, Cup depth: 29.92 mm, Bore: 7.14 mm, Total length: 81.28 mm, Silver-plated, Comparable to Bach 1-1/2G
Thomann Italia