NYXL1164 is designed for 7-string players who prefer moderate flexibility and a full, powerful sound. The D’Addario NYXL guitar strings can bend further, sound louder, and stay in tune better than any string you've played before. Designed, perfected, and manufactured by D’Addario in New York, this newly developed, break-resistant core made from high-carbon steel and a plain steel alloy offers a completely new level of freedom, confidence, and power. NYXL strings provide more strength and up to 131% higher tuning stability through a completely redesigned wire drawing process combined with a revolutionary fusion twisting process for the plain steels. The newly formulated, nickel-plated string windings have improved magnetic properties, leading to higher output and enhanced mid-frequency response, resulting in more presence and crunch. NYXL uses D’Addario's exclusive, high-carbon steel alloy made in New York for unmatched strength, allowing you to play fearlessly. The improved tuning stability compared to traditional nickel-wound strings means you can get in tune faster and stay in tune better. The wound strings offer an enhanced mid-frequency response in the range of 1 - 3.5 kHz, providing more presence and crunch to cut through the mix. NYXL1164 is optimized for a scale length of 25.5": Plain Steel .011 .014 .018 Nickel Wound .028 .038 .049 .064. Environmentally friendly, corrosion-resistant packaging ensures that the strings stay fresh.