Zildjian ZBT 3 pack of cymbals at DC Music Store. Box set that includes 13" hihat pair and an 18" Crash Ride. ZBT Series. Made from the same energetic sheet bronze alloy as ZBT-Plus. An ideal first set. Great sound, great value. These cymbals begin as pre-formed disks that are shaped, hammered and lathed, like cast cymbals. Their voices have a higher pitch, more focused overtones and a faster decay than cast cymbals and produce a more consistent sound from cymbal to cymbal. 92% Copper, 8% Tin.