D'Addario XL Nickel Wound electric guitar strings set the benchmark for all other strings. The best-selling electric set, XL Nickel, has been cherished by musicians globally since 1974. Constructed with a high carbon steel core and nickel-plated steel wrap wire, XL Nickel strings deliver a bright, versatile tone, perfect for an array of musical genres. The 10-46 Regular Light gauge is our most favored, offering an excellent mix of tone and playability.