D'Addario's NYXL electric bass string sets feature the innovative combination of NYXL nickel-plated wrap wire wound on our NY Steel core for expanded dynamic range and harmonic response. NYXL45130SL provides 5-string players with an extremely versatile string set, including a deep, tight, low B-string, in super long scale. NYXL Bass features our high carbon NY Steel core wrapped with our reformulated nickel-plated steel. This new construction delivers deep, powerful lows, focused punch, and accentuated harmonics. Designed for all playing styles, NYXL Bass provides more dynamic range and sustain than any other bass string. Re-engineered core-to-wrap ratios for a more versatile string Reformulated nickel-plated steel wrap wire for a familiar feel and accentuated harmonics NY Steel cores for improved tuning stability and increased durability 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