Features: Symphony in F/Bb (reversible) .468" (11.89mm) bore 12" (305mm) standard throat rose brass screw bell 1st branch & leadpipe tapered rotors & bearings lacquer finish 7BW mouthpiece 7514L deluxe hardshell case. Geyer-style horn (change valve follows main valves). A slightly darker sound than 10D but with same overall playing characteristics. Full warranty. (Shown without screw bell)