Dillon Music Roylance TDC Tuba Mouthpiece Heavy Weight Euro

Roylance TDCH- Heavy Weight ( 20 grams Heavier ) Rim diameter of 1.295" (32.89mm) Throat of .323" (8.2mm) Deep funnel cup. European shank is larger and the taper begins with an outside diameter of .540” (13.71mm) ,