Light 6-string set for acoustic guitar from Rare series that features string with phosphor bronze wire wound on hexagonal cores. They are a departure from the standard, good quality bronze string currently available – not necessarily better, but possessing a new, different and stronger “voice”. Hand-carved arch-tops, dreadnaughts and good steel string acoustic guitars made of rosewood, maple, and mahogany seem to benefit from a distinct improvement in tone, depth, and sustain with these strings. Players who want a fatter and louder sound, as well as a deeper bottom (who like to hear their guitars ring out) will appreciate their phosphor tone, sound, and feel. Gauges: .010, .014, .022, .030, .038, .048.