Features: Symphony in F/Bb (reversible) .468" (11.89mm) bore 12" (305mm) standard throat rose brass bell rose brass 1st branch & leadpipe tapered rotors & bearings lacquer finish 7BW mouthpiece 7514L deluxe hardshell case. A Geyer-style horn (change valve following the main valve cluster). A slightly darker sound than the 10D but with the same overall playing characteristics. Full warranty.