D’Addario NYXL guitar strings represent an exciting development in string technology. Tough as nails, these strings feature an exclusive high-carbon steel core wire and a reformulated nickel plating on the wrap wire. Of course, NYXL strings are made with the dedication to quality and craftsmanship that  guitarists have come to expect from D’Addario. But what does all of that do for you? First, the strings are more flexible, making them a much better alternative for players who abuse the whammy bar. They’re also more stable — case in point, D’Addario reports these strings flaunt a 131% greater tuning stability. Suffice it to say: with these strings on your guitar, you’re free to play without worrying that a broken string will derail your session.