D'Addario Guitar Strings - XT Phosphor Bronze Coated Acoustic Guitar Strings - XTAPB1253-3P - Extended String Life with Natural Tone & Feel - For 6 String Guitars - 12-53 Light, 3-Pack

From the manufacturer XT Phosphor Bronze Acoustic Guitar Never Fade Away D’Addario XT Strings use groundbreaking lifespan-increasing technology on every string to bring you enhanced pitch stability and lasting performance—all while preserving the tone and feel of your favorite untreated strings These strings are made to stay for performance that never fades away