EXL160 D'addario 50-105DAddario EXL160 Long Scale Medium Nickel Wound Electric Bass Guitar Strings 50 105XL Nickel are the industry standard in electric bass strings. With their clear fundamentals, booming tight lows, and reliable DAddario construction, theyre trusted by players everywhere to handle any performance. XL Nickel bass strings are made with a high carbon steel core and wound with nickel plated steel wrap wire, for consistently bright tone and smooth playability,