Gauge: .010 - .013 - .017 - .026 - .036 - .046. (Box of 12 Sets). Zakk demanded that these strings not only live up to his legendary tone, but withstand the punishment of his heavy attack and touring schedule. Based on Dunlop’s Heavy Core technology, Zakk Wylde's signature strings offer excellent flexibility, and hold up under low tuning and hard playing.