5-String version of 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 long scale basses with a string scale length of up to 36 1/4 inches. Made in the U.S.A. for the highest quality and performance. String Gauges: Wound .050, .070, .085, .105, .135. Environmentally friendly, corrosion resistant packaging for strings that are always fresh.