XS Nickel coated electric guitar strings provide the longest life of any D’Addario electric guitar string. Coated with our groundbreaking XS coating, these premium electric strings attain maximum life and a smooth, fast feel without dampening their outstanding tone. Constructed with a NY Steel core, reformulated nickel-plated steel wrap wire, and Fusion Twist technology, XS Nickel strings boast superior strength and tuning stability, plus richer harmonics, greater clarity, and remarkable definition with every sweep, slide, and bend. This 10-52 Light Top/Heavy Bottom gauge set has a deeper low-end than Regular Lights, balanced with comfortable playability.