Genista Jazz shells are available in the classic 100% American birch and now 100% American maple. The shells are 5.6mm 7-ply thick and like all professional Premier drums, the toms and floor toms are 3mm undersized for easier, more-positive tuning and clearer sound quality. The shell finish is impeccable with a choice of stunning sparkle lacquers, high gloss lacquers or classic wraps and all internally lacquered. Features: 100% American maple, 5.6mm 7-ply un-supported shells, 3mm undersize (tom and floor toms), Internally lacquered shell, Iconic Genista Diamond Chrome lugs, Fitted with new die-cast ISO mount in Diamond Chrome, 2.3mm triple-flange steel hoops, 20"x 18" Bass Drum, 14"x6" Snare Drum, 10"x8" a 12"x9" Quick Toms, 14"x 14" Floor Tom. Finish: Blaze Sparkle