Features: Perfect string replacement universal for folk guitar. Comfortable use feeling, full and bright tone. 6pcs in 1 package, different color end ball corresponding with serial number, convenient for mounting. 1st and 2nd strings are made of high-carbon steel, durable and rust-proof. 3rd, 4th, 5th and 6th strings are adopt high-carbon steel hexagonal core, 99% pure copper of wire wound,strong tightness. Extra light tension offer it excellent resonates and easy to play. Pretty suitable for primary guitar players and professional shows. Specifications: Model: TX620-P Tension: Extra Light Material(1st and 2nd strings): Steel Material(3rd, 4th, 5th and 6th strings): High-carbon Steel (inside) / 99% Pure Copper (outside) Packing: Plastic Bag Note/inch/mm: E/010/0.25; B/014/0.36; G/023/0.58; D/030/0.76; A/039/0.99; E/047/1.20 Package Size: 14 * 11 * 0.5cm / 5.7 * 4.3 * 0.2in Package List: 1 * Set of Folk Guitar Strings Note: The guitar is not included.