Yamaha Mouthpiece Trombone 53DL
Yamaha Mouthpiece Trombone 53DL, Mouthpiece for Trombone, Standard 53DL (large shank), Cup diameter: 25.91 mm, Rim: Standard, Rim thickness: Standard, Cup depth: Deep, Bore: 7.11 mm, Backbore: Half-open, Extremely large cup, Excellent middle and low register, Ideal for bass trombone beginners, Silver-plated