Roy Benson Bb/F Trombone TT-227F - 12.7 mm Bore

F-Attachment or Gb-attachment (because of a changeable F- or Gb-slide) When using the Gb attachment, it is possible for children to play the 5th position already on the 1st position 12,7 mm bore 8" Yellow brass bell Nickel silver outer slides Hard chrome-plated nickel silver inner slides F-attachment lever, ergonomically curved Lacquered finish Light weight form shaped case with rucksack assembly