Fox ContrabassoonFINISHMahogany using tough acrylic enamel, with Silver plating on all keys and metal work. Nickel plating available.MECHANISM18% Nickel Silver Keys and trim with solid 3/16″ nickel hinge rods. German system with rollers on little finger Eb and Db, F and Ab keys. Alternate F# Spatula (Little finger) and Eb key for right forefinger. Water key on tuning slide. All posts set in epoxy and spring posts are locked with screws. All needle springs utilize long lasting music wire.BODYMaple, selected for optimum resonance and performance characteristics, naturally aged in our own facilities. All tenons carefully fitted to their receiving sockets to insure structural reliability. Joint connections and metal reinforcing bands sealed with silicone sealer Three point bell bracing to improve rigidity Inner elbows are removable without disturbing the bracing, permitting easy cleaning access without disassembly.ACCESSORIESFine case, 2 Fox Bocals, 2 ReedsTUNINGIntonation based on A-440 with the tuning slide extended. Highly centered tone quality with maximum core in the sound. Resonance, projection and flexibility to satisfy the requirements of the most discriminating performers.