Feature:1. 6pcs/set guitar strings designed for classical guitars.2. The whole set is black and wound by automatic winding machine.3. The G-3rd, D-4th, A-5th, E-6yh strings are made of high-flexibility multifilament.4. Adopts anti-rust technology of coating, the anti-rust duration of strings is 4-5 times longer.5. Comes with a complimentary G-3rd string.6. Comes with a complimentary G-3rd string. Offers mellow tone, comfortable feel and a different sense of inspiration on playing.Specification:Features:6pcs/set guitar strings designed for classical guitars.The whole set is black and wound by automatic winding machine.The G-3rd, D-4th, A-5th, E-6yh strings are made of high-flexibility multifilament.With proprietary anti-rust technology of coating, the anti-rust duration of strings is 4-5 times longer.Offers mellow tone, comfortable feel and a different sense of inspiration on playing.Comes with a complimentary G-3rd string.Specifications:Model: AC136BK-H (Hard Tension)Note/Inch/MM: E-1st/.0285/0.72; B-2nd/.0325/0.83; G-3rd/.026/0.66 D-4th/.030/0.76; A-5th/.036/0.91; E-6th/.044/1.12Package size: 13.5 * 11.5 * 1cm / 5.3 * 4.5 * 0.4inPackage weight: 36g / 1.3ozPackage List:7 * StringsPackage List:7 * Strings