Key: BbBore: .420-inchLeadpipe: TunableLeadpipe Material: Yellow BrassBell: 6.5-inch Two-PieceBell Material: Yellow or Gold BrassValves: 3 Nickel Silver Pistons1st Valve Slide Adjustment: N/A3rd Valve Slide Adjustment: TriggerFeatures: Unique Tone Branch Design (Bell to Valve Section); Hand Lapped Nickel Silver Valves; 3rd Valve Slide TriggerCase: YesMouthpiece: YesFinish: Lacquer, Silver