Key: Bb Bore: .460-inch Leadpipe: Standard Leadpipe Material: Yellow Brass Bell: 4-7/8-inch Bell Material: Yellow Brass Valves: Monel Piston 1st Valve Slide Adjustment: Thumb Saddle 3rd Valve Slide Adjustment: Adjustable Ring Features: Standard Body Design; Monel Valves Case: C-121 Plastic Shell Case Mouthpiece: Blessing 7C Finish: Lacquer