D'Addario's new NYXL are like nothing you've ever heard before.  These strings will bend farther, sing louder, and stay in tune better than any guitar string ever made.  Period.  The new NYXL strings feature a high carbon steel alloy which was manufactured in New York and allow for unprecedented strength while playing.  The improved tuning stability and enhanced mid-range frequency response give musicians more presence and crunch without having to worry about your strings constantly slipping out of tune.  Best of all, the corrosion resistant packaging guarantees that the NYXL strings are always fresh.  Get ready to rock!