willie's Custom Brass Willie's Trombone Mouthpiece Walküre HY Series Large Bass SP Finish (1)

The next-generation standard that allows you to fully enjoy the German-style tone and sharpness Supervisor: Hideki Yamashita (Kyushu Symphony Orchestra) SP finish Rim diameter 28.55 (mm) Throat diameter 7.25 (mm) Approximate size of other companies: Back 1G