Features Level Custom Key Bb (YCL-CSV/CSVN) Fingering Boehm Key System 17 keys, 6 rings Barrel Length 65mm Description Product Description Key of Bb. Each instrument has a select handcrafted grenadilla wood body and sculptured silver-plated nickel silver keys. The SCV bore gives it a dark sound with added resonance. Toneholes are individually hand-tapered and undercut for optimum tone quality, intonation, and uniform response throughout the instrument's range. The taper inside the new bell design is more open to provide for a round, full sound.The Yamaha V-Series clarinets represent the very pinnacle of the clarinet making art. They are handcrafted from a select grade of grenadilla wood with uniquely contoured inner bore configurations. Hand-tapered undercut toneholes provide outstanding intonation and response. V-Series clarinets incorporate a unique silver-plated nickel silver alloy for key construction which adds to the resonance of these fine instruments. V-Series clarinets are instantly recognizable by the "V" emblem on the upper joint.All Yamaha wind instruments come with a limited 5-year warranty.