Denis Wick 1AL Heritage Bass Trombone Mouthpiece

The innovation behind the Heritage series for trombone lies in the combination of increased mass at key points that reduce energy loss with thinner upper walls that provide power and sensitivity at all dynamic levels. The result is maximum sensitivity and response with clearer overtones and improved range.Open backbore provides less resistance in the low register. -Cup Diameter: 27.10mm. -Rim width: 6.1mm. -Throat: 7.45mm. -Backbore: Open. Large shank. Gold plated rim and inner cup.