Thank you for viewing. I am selling a trombone mouthpiece. - B. Tilz Bako model 6.1/2AL - For small shank - Silver plated - With box It has only been used for test playing, so it is in the same condition as when purchased. There is some slight blackening. This is a mouthpiece from B. Tilz, a specialized German mouthpiece manufacturer. Based on the mouthpiece of the old Mantovan Vernon model, it is a model developed independently by Tilz, and is a mouthpiece that can fully accommodate everyone from beginners to professionals, classical players to jazz players. Type...Trombone Accessories/Parts...Mouthpiece