This crash is used but in great condition with some cosmetic blemishes on the surface. The cymbal sounds great and features exceptionally quick and sensitive response. Zildjian ZHT Ultimate Sheet Bronze Cymbals. 88% Copper, 12% Tin. Zildjian’s first-ever B12 alloy results in their most musical Sheet Bronze series yet. A higher tin content, ultra-modern crafting techniques, and extensive hammering have created a more musical sound than previously found in a Zildjian Sheet Bronze cymbal. ZHT is the only Zildjian Sheet Bronze series in a traditional finish and features popular Zildjian Cast Bronze models.