willie's Custom Brass Willie's Trombone Mouthpiece RB Series for Small Bore Tenor (SP)

A modern reproduction of the 1930s German mouthpiece "Ritner". It has a deep cup for its caliber, and you can enjoy a smooth tone. Supervisor: Katsumi Hagiya (Lecturer at Shobi University) Rim diameter 25.10 (mm) Throat diameter 6.85 (mm) Approximate size of other companies Size: Bach 6-3/4AL