MODEL CR300 BACH Bb CORNET .459" medium-large bore, 4-3/4" two-piece bell with rim wire, Monel metal pistons with one-point nylon valve guides and enclosed barrel-shaped bronze valve springs, one-piece brass valve casing, adjustable third valve slide finger ring and stop mechanism, two waterkeys, nickel silver mouthpiece receiver and trim, brass tuning slide receivers, lacquered finish, genuine Vincent Bach mouthpiece, double-wall case.