SIZE DIAMETER THROAT DEPTH
SMALL
12C .95 S Shallow
51D 1.00 L X-deep
6 1/2AL .99 M Medium
LARGE
1 1/2G 1.08 L X-deep
51D 1.00 L X-deep
5G 1.00 L Deep

SMALL
12C - Our smallest cup - Ideal for beginners or Lead-Trombone!
51D - Our most popular mouthpiece for professional Euphonium & Trombone players!
6 1/2AL - Standard
LARGE
1 1/2G - Favored for Bass-Trombone, Tuba/Euphonium doublers, and anyone with adequate breath-support!
51D - Our most popular mouthpiece for professional Euphonium & Trombone players!
5 G - Standard