Curt Mangan Fusion Matched strings 11-52 phosphor bronze lightGauges: 11/15/22 W/30/42/52 (Light Set)Length of String Length 43 inches (109 cm) Phosphor Bronze Wound Strings have been in the early 1970ern in mind and is a Meistgewählten strings for acoustic guitars. Phosphor bronze strings are made from approximately 92% copper, 7% Zinc and 1% Phosphorus. Phosphor bronze provides nice treble and bass, with subtle overtones. Phosphorus helps to strings against corrosion resistant subject to change without notice.