EXL110 Nickel Wound strings are D'Addario's most popular electric guitar strings. The XL series strings are precision wound with nickel plated steel onto a high carbon steel, hexagonal shaped core. The result: strings with long lasting, distinctive bright tone and excellent intonation making them ideal for a wide variety of guitars and musical styles. String Gauges: .010 .013 .017 .026 .036 .046