The XS Nickel coated electric guitar strings from D'Addario have the longest lifespan. These high-end electric strings get maximum longevity and a fast, smooth feel thanks to our ground-breaking XS coating, without losing their exceptional tone. Newly developed nickel-plated steel wrap wire, a NY Steel core, and Fusion Twist technology combine to create the XS Nickel strings, which have exceptional strength and tuning stability as well as richer harmonics, more clarity, and astonishing definition with every sweep, slide and bend. Our most popular gauge, 10-46 Regular Light, offers a wonderful blend of tone and playability.