XL Nickel Wound, D'Addario's most popular electric guitar strings, are precision wound with nickel plated steel onto a carefully drawn, hexagonally shaped, high carbon steel core. The result—strings with long lasting, distinctive, bright tone and excellent intonation—is ideal for the widest variety of guitars and musical styles. Features Features a wound 3rd/G string, optimal for jazz style playing and some drop tunings Round wound with nickel plated steel for distinctive bright tone Environmentally friendly, corrosion resistant packaging for strings that are always fresh All D'Addario strings are designed, engineered, and manufactured in the USA String Gauges: Plain Steel .010, .014, Nickel Wound .022, .030, .038, .049 Specifications Coating: Uncoated Tuning: Standard Number Of Strings: 6 Set Type: Sets Wrap Material: Nickel-Plated Steel