Features Key: Bb Bore: .459-inch Leadpipe: Standard Leadpipe Material: Yellow Brass Bell: 4-13/16-inch One-Piece Hand Hammered Bell Material: Yellow Brass Valves: Monel Piston 1st Valve Slide Adjustment: Thumb Saddle 3rd Valve Slide Adjustment: Fixed Ring Features: Top Spring Action Valves in Enclosed Spring Barrel and Two-Point Valve Guides; Nickel Silver Tuning Slide Receiver Case: 1805 Deluxe Case Mouthpiece: Bach 6 Cornet Finish: Lacquer, Silver Description Product Description Because of its 2 windings and conical bore, this instrument has more resistance and flexibility. Best suited for coloratura work, slurring, triple tonguing, and other technical performances. The tone is smooth and not as heroic or martial as that of the Bb trumpet. Available in 3 bore sizes (M, ML, L), this is the medium-large bore model, a versatile, easy playing instrument.