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 Strings Material: Copper Color: Multicolor Quantity: 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