| Designed and gauged for " High Strung" or " Nashville" tuning methods Phosphor Bronze, 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 .010, .014, .009, .012, .018. Phosphor Bronze Wound .027 |