Zakk Wylde String Lab Artist Series

https://www.jimdunlop.com/zakk-wylde-string-lab-electric-guitar-strings-10-56/
Dunlop and Zakk Wylde have come together once again to deliver electric and acoustic strings designed to withstand the punishment of the reigning Berzerker of Metal Guitar. Perfected through extensive engineering and critical road testing by Zakk himself, these strings hold up under the heaviest hands in rock with optimal tone, feel, and pitch retention at any tuning.