Professional bass trombone (0.562") with dual independent (inline) Hagmann "Free-Flow" valves tuned to F and Gb. Open wrap valve tubing is standard for better airflow. Features include a 9.5" one-piece hand-hammered yellow brass bell, brass outer slidetubes, 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.