Yamaha YTR-2335 Series Student Bb Trumpet Lacquer Key: Bb Bore: .459-inch Leadpipe: Standard Leadpipe Material: Gold Valves: Nickel Plated Pistons1st Valve Slide Adjustment: Thumb Saddle3rd Valve Body Case: Yes Mouthpiece: Yamaha 11B4Finish: Lacquer, Silver Slide Adjustment: Adjustable Ring Features: Gold Brass Leadpipe; Medium Weight Yellow Brass BrassBell: 4-7/8-inch Laser-Fused Pluzuma Welded Bell Material: Yellow Brass