NEW Denis Wick ‘4BS’ Trombone mouthpiece in silver plate (small shank).
Cup Diameter: 25.90mm
Rim Width: 6.77mm
Bore Size: 7.13mm
Back Bore: Medium
Medium bore trombone. For well developed embouchures that need a large cup on small bore trombone.
The most powerful mouthpiece ever designed for small-bore trombones. Gives small bore instruments a sound which is almost the large bore equivalent.