EXL160, D’Addario’s top-selling heavy bass string set, provides the ideal combination of strong overall fundamentals with distinctive brightness and booming, tight lows. Fits super long scale basses with a string scale length of up to 38 inches and a good choice for players looking to down tune. 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's top-selling heavy gauge bass set Round wound with nickelplated steel for a distinctive bright tone with clear fundamentals and booming, tight low end Fits super long scale 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 .050, .070, .085, .105 Environmentally friendly, corrosion resistant packaging for strings that are always fresh Diameter Tension Item # Note Inches mm lbs kg XB050SL G 0.0500 1.2700 56.390 25.580 XB070SL D 0.0700 1.7800 62.350 28.280 XB085SL A 0.0850 2.1600 50.830 23.050 XB105SL E 0.1050 2.6700 42.690 19.370