JOHN PEARSE STRINGS 570C - FOR ACOUSTIC 6-STRING GUITAR - PHOSPHOR BRONZE WOUND - SLIGHTLY LIGHT CUSTOMS 11-52 John Pearse Strings designed for professionals. JPS is a small USA string company known well in musician circles for their passionate work. Great strings - Great Sound! Strings are plain steel and round wound Phosphor Bronze (92% Copper and 8% Tin). A phosphor bronze typical balanced, bright, warm and articulated tone with a bit more of mids than 80/20 bronze. A little bit more corrosion resistant. FEATURES: - Set: 1x John Pearse 570C for Acoustic 6-String Guitar - Hex Core - Roundwound - Material: Phosphor Bronze - Gauge: Slightly Light Customs (011/015/022/030/042/052) John Pearse Strings - Designed for passionate musicians