XL Nickel Wound, D'Addario's most popular electric guitar strings, are precision wound with nickel plated steel onto a high carbon hexagonal steel core. The result is strings with long lasting, distinctive bright tone and excellent intonation, highly versatile and ideal for the widest variety of guitars and playing styles. EXL140 is one of D'Addario's most popular hybrid sets, combining the high strings from an EXL110 (.010) with heavier low strings (.052). This set provides a powerful low end for heavy chording and flexible plain steel strings for bending. It's also the perfect set for drop tunings. It offers the same combination of great tone, flexibility and long life as its siblings in the XL range and like all D'Addario guitar strings, comes in environmentally friendly corrosion resistant packaging for freshness in every set.