D'addario NYXL45105 - set of strings for electric bass guitar with 4 strings, featuring nickel winding, increased strength and durability, tuning stability, long scale. The strings have a carbon steel core for dynamic and harmonic response, with NYXL steel winding plated with nickel. They provide powerful, defined lows, enhanced harmonics, and greater sustain than any other bass strings. Thicknesses 045 - 065 - 085 - 105, Light Top / Medium Bottom tension.