Key: Bb / ABore: .445-inchLeadpipe: Two Sets--Bb and A for Trumpet and Bb and A for CornetLeadpipe Material: Yellow BrassBell: 4-inch One-PieceBell Material: Yellow BrassValves: Monel Piston (4)1st Valve Slide Adjustment: N/A3rd Valve Slide Adjustment: N/AFeatures: Lightweight Body Design; Newly Designed LeadpipeCase: TRC-810 Wood CaseMouthpiece: TR11A5 Trumpet and CR11A4 CornetFinish: Silver