EXL170-5SL is the 5-string super long scale version of the best-selling D’Addario bass set. With the addition of the .130 low B string, EXL170-5SL offers the ideal combination of distinctive bright, booming tone and comfortable feel. The most versatile and universally appealing set for all playing styles. Fits super long scale basses with a string scale length of up to 38 inches. 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. 5-string super long version of D'Addario's best selling bass guitar set Round wound with nickelplated steel for a distinctive bright tone with clear fundamentals Fits super long basses with a string scale length of up to 38 inches Made in the U.S.A. for the highest quality and performance String Gauges: Wound .045, .065, .080, .100, .130