D’Addario electric guitar strings are made in the USA to the highest standards of engineering, ensuring the best sound, feel, and strength, no matter how you play. Sets of D’Addario electric strings include two types of strings: plain steel and wound strings. The wound strings are the lower strings on the guitar, usually E, A, & D, (and sometimes G), which are thicker due to the “winding.” Wound strings and the term winding come from the way these strings are constructed—using a hexagonally-shaped steel wire at the core, with another type of metal wire wound around it. By contrast, the other three strings in an electric set are “plain steels,” usually E, B, & G. Plain steels are thinner, are made from one type of alloy, and do not have winding. This allows them to achieve a higher pitch., From arena stages to storied luthier shops, D’Addario makes strings and accessories for players who know the difference they can make to their sound. Get In The Know, As one of the world's leading guitar string companies, D'Addario offers multiple lines of electric guitar strings including XL Nickel, XS Nickel, NYXL & more. Learn more about the electric guitar strings we have to offer today..