For repair, the kit includes: 1 guitar wire pliers, 2 guitar neck protectors, 3 guitar files, 3 hex wrenches (4/5/6mm), 1 steel string ruler, 1 string action height ruler, 1 muti ring wrench, 6 guitar bridge pins, 1 guitar pick bag + 4 guitar picks, 1 guitar machine head tuner winder, 1 flat screwdriver and 1 polishing cloth. Repair and configuration of acoustic guitars, bass, mandolin, banjo, ukulele, electric guitar. It's easy to do your own string and configuration changes. Keep your instrument in top playing condition. Change the strings, set the intonation, adjust the action, check the string height clean, and polish your instrument. Fingerboard guards to avoid damaging the guitar neck from scratching when folding the frets to the crown and polishing. Fret instrument files of various shapes, equal to flat, round, semi-circular. String Action ruler measuring tool for acoustic, classical, electric, bass guitar. The screwdriver can be adjusted in length with a screwdriver and switched from a flat head to a Phillips head. The Multi Spanner is used to tighten or loosen most thumb nuts or pulleys found on guitars, such as the output jack, controllable pot, pickup switch, tuning machine, and bridge parts. The string slicer pliers are great for easily cutting the string to your guitar when making a string of changes. Restringing guitars and stringed instruments has never been easier.