| D'Addario most popular acoustic guitar string set, known for its superb, long-lasting tone and comfortable playability Preferred for its warm, bright, and well balanced acoustic tone Environmentally friendly, corrosion resistant packaging for strings that are always fresh | Made in the U.S.A. for the highest quality and performance String Gauges: Plain Steel .012, .016, Phosphor Bronze Wound .024, .032, .042, .053 |