1,IMPROVE TONE QUALITY: You can get excellent guitar strings that can make every gentle melody and powerful chord sound harmonious and improve the playing effect. 2,SIMPLE REPLACEMENT: These strings are simple to install, easy to replace, and have a long life, not easy to break strings, and do not need to be replaced frequently. 3,NICKEL WOUND STRINGS: The wound strings are made of a super strong electromagnetic copper alloy and are silver plated to meet professional playing requirements. 4,HEX STEEL CORE: The hex core provides the durability, gloss, crispness, and musicality you expect from a steel core that will enhance your playing experience. 5,LONG SERVICE LIFE: The strings have an environmentally friendly anti rust coating that provides excellent resistance to oxidation, making our strings last 4 5 times longer than unprotected strings. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.