| D'Addario most popular acoustic gauge, ideal balance of tone and playability Extra-bright tone mixed with deep and projecting bottom end, EXP Coated for 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 .012, .016, Bronze Wound .024, .032, .042, .053 |