D'Addario NYXL0942 New York XL Electric Guitar Strings, Super Light 09-42 -NYXL's feature D?Addario?s exclusive New York manufactured, high carbon steel alloy for unprecedented strength - play fearlessly -Improved tuning stability compared to traditional nickel wound strings - get in tune faster, stay in tune better -The reformulated nickel plated string windings have greater magnetic properties resulting in higher output and enhanced mid-range frequency response for more presence and crunch. Gauges: Plain Steel .009, .011, .016, Nickel Wound .024, .032, .042