For pro guitar players at , hobby guitarists at home, or beginners just starting their first guitar lesson, the kit set is the industry standard guitar tool kit. Includes all the tools needed to set up and maintain acoustic or electric guitars. It is built to last and be able to suffer the rigors of the road. Features - Color: Black. - Material: Metal. - Size: 17.20 x 1.95 x 2.15cm/ 6.76 x 0.77 x 0.84 inch. - Suitable for luthier and string instruments user to maintain and keep the instrument in good playing condition. - Make the necessary measurements and adjustments on acoustic and electric guitar, bass, banjo, mandolin and other stringed instruments. - This guitar maintenance kit includes string changes and settings, great for maintaining and keeping your instrument in . - The guitar setup kit is intended for maintaining and keeping your instrument in , can be applied to change string, set tone, adjust action, check string height, etc. - This guitar repair tool kit is applicable to change strings, set intonation, adjust action or check string height, great for string instrument cleaning, maintaining and repairing. Package list: 1 x string organizer 1 x string action ruler 1 x gauge measurer 3 x hex wrench 3 x guitar file 1 x screwdriver 1 x storage bag