... Material: brass/aluminum/zinc alloy / steel Style: europe door cylinder New Color Brass Cylinder 1. Hight precision single row bead lock core ... : brass, zinc, iron, aluminumLock cylinder options: zinc, brassColor options: any color you want.Keys maerial: brass or ironKeys style: normal opening ... 10 inner box into a outer carton, that 120pcs/ctn. New Color Brass Cylinder