D'Addario XT Electric Nickel Plated Steel strings combine our most popular electric guitar alloy with an advanced corrosion resistance treatment on every string in the set, preserving the natural tone and feel of uncoated strings. Available for 6 string electric guitar ranging from super light to light top/heavy bottom gauges. D’Addario XT strings feature high carbon steel cores with an advanced corrosion resistance treatment on every string in the set, giving you enhanced break resistance and unyielding pitch stability—all while preserving the tone and feel of your favorite uncoated strings. These strings are made to stay, with uncompromising performance that never fades away., XT strings feature an advanced corrosion resistance treatment on every string in the set, preserving the natural tone and feel of uncoated strings. High carbon steel wire and Fusion Twist technologies deliver unrivaled tuning stability and break resistance. Strings stay in tune 131% better than traditional strings!, The inner packaging features a re-sealable zip closure, for ease of opening as well as storage of unused strings. Every set includes a Players Circle code for product identification, registration, and authentication. Players can collect points to get rewarded with D’Addario products and merchandise.