A popular choice for heavy strumming, flat-picking and resonant, projecting tones - also optimal for DADGAD tuning / 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 .013, .017, Phosphor Bronze Wound .024, .032, .042, .056 /