FunctionThis professional guitar repair tool set can be used for tuning, changing strings, checking and adjusting string height, cleaning, maintenance and repair of stringed instruments. Ideal for maintaining and maintaining your instrument in good condition, it includes some of the most common maintenance tools, a complete variety and is very easy to use. Usage Necessary measurement and adjustment of acoustic guitar , electric guitar, bass, banjo, ukulele and other stringed instruments. Suitable for luthiers, stringed instrument users, beginners, etc. Suitable for changing strings, adjusting intonation, adjusting movement or checking string height. Convenient Storage BagThe large capacity storage bag is able to pack all tools, when in use can be fully spread out, which is convenient to use, when not in use, it can be pulled up to become a handbag for save space. IdealThis fully functional, high quality guitar tool kit is perfect for your friends, children or anyone who loves playing stringed instruments, they will be very happy or for yourself is a good choice. [Included] 1 * string pen + 6 * string nails (ABS) + 8 * hex wrench + 10 * 2 * grinding file grinding joint + 1 * nut file + 1 * cutting pliers + 1 * guitar spacing measuring ruler + 9 * measuring ruler 1 * string winder + 1 * string height measuring ruler + 1 * measuring ruler sand block + 1 * grinding stone + 1 * qin cloth + 1 * cloth bag Product size: 26.5 x 15 x 5 cm. Product color: black Quantity delivered: 45 pieces