D'Addario EXL170-6 6-String Nickel Wound Bass Guitar Strings (32-130)The D'Addario EXL170 6 6 String Nickel Wound Bass Guitar Strings are made with a high carbon steel core and wound with nickel plated steel wrap wire for consistently bright tone and smooth playability, great for a wide variety of bass styles. Made for 6 string basses, this 32 130 Regular Light Long Scale set takes our most popular gauge and adds a low B string on the bottom, as well as a high C string on top. The XL Nickel are the industry standard in