Description Stradivarius Bass Trombone with Single Rotor System “Stradivarius” – Single rotor system, Bb/F, .562″ bore, 9-1/2″ one-piece hand-hammered yellow brass bell. Yellow brass outer handslide tubes, open wrap “F” section with traditional rotor and chrome plated nickel-silver inner handslide tubes. Clear lacquer finish, genuine Vincent Bach 1-1/2G large shank mouthpiece and classic Stradivarius wood shell case
