D'Addario XL Nickel Wound EXL120+ Super Light Plus 9.5-44 Electric Guitar Strings are globally recognized as "The Player's Choice" among musicians of various genres and styles. The XL strings are meticulously wound with nickel-plated steel around a hexagonally shaped core, producing a uniquely bright tone and precise intonation. The "Plus" gauges provide subtle tension differences between gauges, perfect for balancing tension across guitars with different scale lengths or for transitioning to heavier gauges incrementally.