100% brand new and high quality Features: The strings are durable, rust-proof and tuning stable thanks to their workmanship. Rely on the recommendation of experienced music teachers and guitar players when choosing your strings. They are manufactured with the most stringent quality control, they are durable for your practicing, playing, performing. Perfect as a replacement string. It is beautiful, rust-proof, durable, steel-nickel alloy winding, comfortable and smooth guitar string. Specifications: Material:Imported Steel Core Size:Silver 1th: Diameter: 1.04mm 2rd Diameter: 1.6mm 3nd: Diameter: 1.92mm 4st: Diameter: 2.4mm Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 4x Guitar Strings