willie's Custom Brass Willie's Trombone Mouthpiece Conrad Herwig Series for Small Bore Tenor GP Finish (12)

Signature model of Conrad Herwig, a leading figure in the jazz world. Tuned based on the NY Buck 12 (not the 12C) from his Bronx days Supervisor: Conrad Herwig (jazz trombone player) GP finish Rim diameter 24.50 (mm) Throat diameter 5.92 (mm) Approximate size of other companies' size: Buck 12