Patterned after a traditional euphonium mouthpiece, the BB2 model has a "V" cup design giving a full responsive tone quality. Like the BB1, the cup diameter is somewhere between that of a Bach 6.5A and 5G (around 25.45mm) but not as deep as the BB1 model. The BB2 still produces a characteristic euphonium sound and response. Large shank fits all modern large shank euphoniums, as well as large bore tenor and bass trombones. Gold plated silver.