These D'addario NYXL1052 electric guitar strings are next generation strings that offer more punch, crunch and strength that ever before. With enhanced tuning stability and break-resistant technology you can play with a whole new level of freedom, confidence and enjoyment! The New York Steel comprises of of a high steel carbon alloy that makes these very tough indeed.Enhanced mid range and greater magnetic properties allow extra output to make your guitar sing like it never has before. Feel more, hear more! The strings push your amp more too which makes it break up easier, nice and powerful!This Light / Regular gauge has string thicknesses of:ÿ10, 13, 17, 30, 42, 52.ÿGreat for playing heavier styles and drop D.