D"Addario"s Top Selling nickel electric guitar strings used by many great artists, nickel-plated steel wire wrap for a bright, true sound, coming in an enviromentally friendly package with colour coded ballends for easy reference . D"Addario pioneered the use of nickelplated steel for electric guitar. Today, discerning professionals like Mark Tremonti, John Scofield, Carlos Santana, Pat Metheny, and Brad Delson, just to name a few, choose XLs for their distinctive bright sound and excellent intonation. EXL150 - 10, 10, 13, 13, 17, 08, 26, 12, 36, 18, 46, 26.