Professional bass trombone (0.562") with dual independent (inline) Infinity Axial Flow valves. Attachments are tuned to F and Gb and are open wrap in design. Features include a 9.5 inch one-piece hand-hammered yellow brass bell, brass outer slide tubes, seamless chrome-plated nickel silver inner slide tubes, nickel silver slide handgrips, tubular nickel silver body braces, Bach 1.5G mouthpiece (can be swapped for any in-stock Bach mouthpiece of similar cost at no additional charge) and a model 1845 fabric covered wood shell case.