Conn 62HI Dual Independent Rotor Bass Trombone Outfit

Key of B. .562 primary bore .580 bore through rotor sections side-by side rotors function as an independent system 9-1/2 annealed rose brass bell 3 interchangeable mouthpipes chromeplated inner slides lacquer finish. Comes with 1-1/2G mouthpiece and deluxe wood shell case.