Brand: D'Addario Model: EXL158 B Standard or Drop Tuning Designed for modern, shorter scale electric baritone guitars Can be used for down tuning on most standard electric guitars Environmentally friendly, corrosion resistant packaging for strings that are always fresh Made in the U.S.A. for the highest quality and performance String Gauges: Plain Steel .013, .017, Nickel Wound .026, .036, .046, .062 While optimally designed for today's modern, shorter scale electric baritone guitars, EXL158's are also an excellent solution for deep, down-tuning on most standard electric guitars.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, is ideal for the widest variety of guitars and musical styles. Brand D'addario SKU DA003EL0FFK2SNAFAMZ-151483 Model EXL158