Product Name: Guitar Tool Set 45 Pieces Weight: 733g Packaging Size: 26.5*15.5*4.5cm Multi-function: This guitar repair tool set is suitable for changing strings, setting pitch, adjusting action or checking string height, which is very suitable for cleaning, maintenance and repair of stringed instruments! Easy to use: This product contains all string changes and settings, such as adjusting the screwdriver length, pressing the round iron plate in the middle of the screwdriver to change the head! Purpose: The guitar setting kit is used to maintain and keep the instrument in good performance. It can be used to change strings, set pitch, adjust action, check string height, etc. Suitable for musicians and string instrument users! Packing list: 1* string guard pen, 1*sponge sanding tool, 1*string winder, 1 set of nine-piece arc ruler (9 types of arcs in 1 set), 1 string cutter, 1 set of hexagonal wrenches (1.5/2/2.5/3/4/5/5.5/6mm), 6 string pins, 1 set of bone string nut grinding files, 1*string height ruler, 1 set of 10 grinding files, 1 set of gap rulers, 1 grinding stone, 1 piano cloth, 1 cloth bag, 1 set of fret spacers