| 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 D’Addario’s 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 |