This large bore Symphony instrument has won overwhelming acclaim for its evenness of sound, excellent response, and flexibility of performance. Specifications: . 547 (13. 89mm) bore; . 562 (14. 27mm) bore through open wrap F attachment; 8-1/2 (216mm) rose brass bell; rose brass outer slide; lacquer finish. Comes with Conn 5G mouthpiece and deluxe woodshell case.