D'Addario NYXL guitar strings will bend farther, sing louder, and stay in tune better than any string you've played before. Envisioned, perfected, and manufactured by D'Addario in New York, this newly engineered, break-resistant, high-carbon steel core and plain steel alloy delivers a whole new level of freedom, confidence, and power. NYXLs provide more strength and 131% greater tuning stability by utilizing a completely reinvented wire drawing process combined with a revolutionary _fusion twistÓ at the ball end of the plain steel strings. The reformulated nickel plated string windings have greater magnetic properties resulting in higher output and enhanced mid-range frequency response for more presence and crunch. The NYXL0942 set is designed for maximum flexibility.