D'Addario EXP26 Custom Light Coated Phosphor Bronze Guitar Strings 6-Pack A D'Addario hybrid gauge, combining light gauge bottom strings with lighter top strings for easy bending EXP Coated phosphor bronze for warm, bright, well balanced acoustic tone and 4 times more life Feature DAddarios exclusive New York manufactured, high carbon steel for unprecedented strength and pitch stability. Environmentally friendly, corrosion resistant packaging for strings that are always fresh String Gauges: Plain Steel .011, .015, Phosphor Bronze Wound .022, .032, .042, .052