D'Addario EXL116 11-52 Electric Guitar StringsEXL116 is a hybrid set with an . 011 on top and a . 052 on the bottom, giving the strings moderate flexibility on the high strings with booming, tight low end. Optimized for down tuning. XL Nickel Wound, D'Addario's most popular electric guitar strings, are precision wound with nickelplated steel onto a carefully drawn, hexagonally shaped, high carbon steel core. The result, strings with long lasting, distinctive bright tone and excellent intonation,