Bb/F Tenor Trombone. This instrument features Bore .547“ = 13,9 mm, Yellow brass bell, Ø 8,5" = 216mm, New two piece bell shape for a powerful sound, Bell rim with wire, real logo engraving, F-attachment, open wrap, Free vibrating body construction by 3 point fixation of the F-loop, „Mini“ balancer with Bach engraving, Hard chrome plated nickelsilver inside slide tube, nickelsilver outside slide, Genuine VINCENT Bach 6 1/2 AL mouthpiece and slide grease, Finish: clear lacquer, Müller Lacquering, Made in Germany, Bach SPS gig bag with rucksack assembly.