willie's Custom Brass Willie's Trombone Mouthpiece U3 KURATA Series Large Bore GP Finish (5D)

A mouthpiece with a newly designed U-shaped cup. Supervisor: Hiroshi Kurata (Professor at Aichi Prefectural University of Fine Arts and Music) GP finish, rim diameter 25.48 (mm), throat diameter 7.20 (mm), similar to other companies Size: Back 6-1/2A RHK rim A well-rounded rim that emphasizes control.