Feature:1. High quality: The string is made of high quality steel rustproof coating. With unique silver shiny color, can serve for a long time and maintain high quality sound.2. Daily Practice: Package include 3 sets of 6pcs guitar strings, enough for daily practice. You do not need to cost time and money when you need to replace the string.3. Practical: The string fits for kinds of guitars, with smooth edge, long service life and small wear.4. String Dimensions: 1: 0.2 mm/ 0.007 inch; 2: 0.3 mm/ 0.01 inch; 3: 0.6 mm/ 0.02 inch; 4: 0.7 mm/ 0.027 inch; 5: 1 mm/ 0.039 inch; 6: 1.2 mm/ 0.047 inch.5. Music art: Suitable for professional guitar artiest and also for beginners, create great music with the replacement string.Specification:Type: Acoustic Guitar StringsMaterial: CopperColor: MulticolorQuantity: 3 Set (one size 6pcs)String Diameters: 1: 0.2 mm/ 0.007 inch; 2: 0.3 mm/ 0.01 inch; 3: 0.6 mm/ 0.02 inch; 4: 0.7 mm/ 0.027 inch; 5: 1 mm/ 0.039 inch; 6: 1.2 mm/ 0.047 inch.Package List:3 Sets of Guitar Strings