The AC280BO has been developed with the young performer in mind. Using the Antoine Courtois designfrom the Legend series AC420BO, it is an open wrap standard rotor .547 bore trombone.The AC280BOhas been developed with the young performer in mind. Using the Antoine Courtois design from the Legendseries AC420BO, it is an open wrap standard rotor .547 bore trombone. Technical specificationsKey : Bb/F Bore : .547″ / 13,89 mm Bell : Two piece yellow brass 8.5″ / 215 mmSlide : Lightweight nickel silver outer slide with large shank receiver, forged water key assembly Features : Two piece yellow brass bell, open wrap traditional valve, adjustable thumb trigger, forged water key assembly Finish : Clear lacquered Outfit : Deluxe ABS case with latches and backpack, mouthpiece, cleaning clothModel : AC280BO-1-0 : .547″ bore size
