The Bach 50AF3 inline independent double rotor bass trombone provides a warm sound and outstanding projection ideal for any trombonist. Its 9-1/2" one-piece hand-hammered bell and .562" large bore combined with "Infinity" valves and open wrap F/Gb attachments offer outstanding clarity and projection with just less resistance. The chrome plated nickel silver inner handslide tubes provide smooth and quick handslide action, while the clear lacquer finish adds subtle warmth. You'll love the 50AF3's responsiveness and control, enabling you to shape each note with nuance. Visit your local Guitar Center today to experience the Bach 50AF3's resonant tone and buttery slide action for yourself.