Features: - High-carbon steel hexagonal alloy inside material. - Made of adopt 75/25 phosphor bronze of wire wound,Hexagonal Core +8% Nickel. - Super antioxidant, greatly extend the service life. - Strong durability, clearly timbre and feeling comfortable. For primary guitar players. Gauge: Orphee TX630: (011, 015, 024, 032, 042, 052) Color: Bronze Material: 75% bronze and 25% phosphor Type: Acoustic The orphee strings with strict control in every process. Ensure with tone and durability consistency & The strings of TX620 series adopt 75/25 phosphor bronze of wire wound, which has effect with strong durability, clearly timbre and feeling comfortable. For Primary guitar players & You deserve strings are inhere. Package Include: 3 x Guitar Strings Sets