Product Description D'Addario XL Nickel Electric Bass strings are world-renowned as "The Player's Choice" amongst bass players of all genres and styles. All XL strings are precision wound on our exclusive computer-controlled machines, ensuring each string has excellent into nation, clear fundamentals, and unparalleled consistency. The nickelplated steel wrap wire is known for it's distinctive bright tone and excellent intonation and delivers a universally appealing tone for all playing styles. From the Manufacturer XLB120 is a .120 gauge nickel wound bass guitar string. Perfect as a replacement string or for creating custom sets. Part of the D'Addario XL Nickel Wound string series. D'Addario XL Nickel Wound Electric Bass strings are world-renowned as "The Player's Choice" amongst bass players of all genres and styles. All XL strings are precision wound on our exclusive digitally-controlled machines, ensuring each string has excellent intonation, clear fundamentals, and unparalleled consistency. Each string is wound with a nickelplated steel wrap wire known for distinctive bright tone with excellent magnetic output delivering a universally appealing and versatile tone for all playing styles.D'Addario, the world's largest manufacturer of musical instrument strings, is known as The Players Choice with a reputation for unsurpassed quality and consistency. D'Addario's innovative, packaging reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.