ELECTRIC GUITAR STRING KIT Pack with 3 sets of electric guitar strings DAddario NYXL0942 (009 - 011-016 - 024 - 032 - 042). D Addario NYXL guitar strings stretch more, sound louder, and tune better than any string you've ever played before. Conceived, refined, and manufactured by D Addario in New York, this newly designed, tear-resistant high carbon and smooth steel core provides a new level of freedom, confidence, and power.