Product Features: 1.The well balanced and warm sound will brings good acoustic experience. 2.High quality steel core, Phosphor bronze wounded, toughness, elasticity, wear resistance and corrosion resistance. 3.Nickel plating solves the problem of rusting, good performance in harsh environment, It's good news for players who sweat hand and never clean their guitar strings.Our product allows you to keep your laziness. 4.Independent and sealed packaging offers super long time stored time, Whether partial replacement or as a spare, it's a perfect choice. 5.The string index(E-1st,B-2nd,G-3rd,D-4th,A-5th,E-6th) marked out on every string package,You don't have to take any time to observe how thick they are then determine where should them install. Package Contents: Acoustic String 2Pack.