YAMAHA Mouthpiece for Trombone Standard Series Small Shank SL-45C2S (Yamaha SL45C2S)

Inner diameter: 24.26 Throat diameter: 5.85 Depth: standard Rim thickness: 6.95 The rim canter is round with a small inner diameter, but has a clear bite. It has good pronunciation and a bright tone, making it a favorite among studio players.