Zildjian"s newest SheetBronze alloy. 88% copper, 12% tin for increased musicality. All-purpose set-up. Pre-matched box set includes 14" HiHats, 16" Medium Thin Crash, 20" Medium Ride, and a free Zildjian Cymbal Bag to put them all in. * Zildjian"s newest SheetBronze alloy. 88% copper, 12% tin for increased musicality. All-purpose set-up. * Pre-matched box set includes 14" HiHats, 16" Medium Thin Crash, 20" Medium Ride, and a free Zildjian Cymbal Bag to put them all in.