D'Addario EXL150H Nickel Wound Electric Guitar Strings, High-Strung/Nashville Tuning, 10-26 Utilizes the higher "octave" strings of a 12-string set Round wound with nickelplated steel for distinctive bright tone Corrosion resistant packaging for strings that are always fresh String Gauges: Plain Steel .010, .014, .009, .012, .019, Nickel Wound .026 Made in the U.S.A. for the highest quality and performance