The Denis Wick 4AL is a widely used, deep-cup trombone and Euphonium mouthpiece. Famous for its use on the original. Backbore: Barrel shape. Bore Size: 7.38 mm. Shank: Large.
Denis Wick 4AL Trombone Mouthpiece for Alto, Silver Plated Metal, Silver
Denis Wick 4AL Trombone Mouthpiece
Denis Wick - Classic Trombone Mouthpiece Silver Plated-4AL 4AL
Denis Wick Classic Trombone Mouthpiece Silver Plated, 5880-5BS - Medium Backb...
