Bb/F-Bass Trombone Series 50BO Stradivarius
F-attachment;Open-Wrap;L bore .562" = 14,28 mm;Bell Ø 9,5" = 241,50 mm;Nickel silver handgrip;VINCENT BACH 1 1/2G mouthpiece;Deluxe wood shell case;Nickel silver inner slide, yellow brass outer slide;Gold brass bell, lacquered finish;50BOG;Made in United States