Bach 50BO Bass Trombone
Bb/F, .562″ (14.27mm) bore, 9.5″ (241.30mm) one-piece hand-hammered yellow brass bell, yellow brass outer slide, clear lacquer finish and deluxe wood case
Bb/F, .562″ (14.27mm) bore, 9.5″ (241.30mm) one-piece hand-hammered yellow brass bell, yellow brass outer slide, clear lacquer finish and deluxe wood case