| | D'Addario XL Pure Nickel strings look back to the '50s, when nickel was the primary alloy found in electric guitar strings. Pure Nickel delivers classic, warmer timbres that define many genres including blues, classic rock, rockabilly, and more. - Strings for the classic and vintage enthusiast - Light - Gauges: 10-13-17-25-35-45 | |  |