Key: F/Bb Bore: .468-inch Bell: 12.25-inch Bell Type: Fixed Bell Throat: Large Bell Material: Nickel Silver, Rose Brass, Yellow Brass Leadpipe: Fixed Leadpipe Material: Nickel Silver, Rose Brass, Yellow Brass Wrap: Kruspe Linkage: String Main Valve; Mechanical Change Valve Features: Nickel Silver Valve Section and Tuning Slides; Tapered Rotors and Bearings Case: Yes Mouthpiece: Conn 7BW Finish: Nickel Silver, Lacquer