Ernie Ball Everlast Phosphor Bronze 13-56

Ernie Ball 2544 Everlast Phosphor Bronze acoustic guitar strings are engineered with revolutionary nanotechnology that repels unwanted moisture and oils that can negatively affect sound.
Patented processing is applied to both the core of the string and the outer sheath to provide maximum protection for the strings without compromising on sound or playability.
The strings are also equipped with RPS technology, which prevents string breakage and improves tuning stability on uncoiled strings.
Warm rich sound with clear and bright highs is achieved thanks to the alloy winding of copper (92%), tin (7.7%), phosphorus (0.3%) and a hexagonal core.
String Gauge: 013 - 056
String Material: Phosphor Bronze
Coated: Yes
Wound: Round Wound
String End: Ball End
Number of Strings: 6
Specifications: 13-17-26-34-46-56