Features Key: Bb Bore: .453-inch Leadpipe: 25 Taper Leadpipe Material: Yellow Brass Bell: 4-13/16-inch One-Piece Hand Hammered 38 Taper Bell Material: Yellow Brass Valves: Monel Pistons 1st Valve Slide Adjustment: Thumb Saddle 3rd Valve Slide Adjustment: Fixed Ring Features: Medium Bore; One-Piece Hand Hammered 38 Taper Bell; Monel Valves; Nickel Silver Slide Receivers Case: Yes Mouthpiece: Yes Finish: Silver (Lacquer Available by Special Order) Description Product Description The medium bore Bach trumpets allow for a lighter sound with less effort. The .453" bore makes playing a lot easier yet the #37 bell still gives that great, solid Bach sound. Please Note: All Bach trumpets and cornets come with 1st valve slide hook, 3rd valve slide ring, case, and mouthpiece, unless otherwise specified.