D'Addario XL Nickel Electric Bass strings are precision wound on their exclusive computer-controlled machines. These strings deliver excellent magnetic output while providing a smooth, comfortable surface that reduces premature fret wear. Sweetwater knows that choosing the perfect string is vital to a musician's sound. Each XL Nickel Electric Bass string plays with clear fundamentals and unparalleled consistency. The nickel-plated steel wrap wire is known for it's excellent intonation and distinctive bright tone, which complements most playing styles.