Applicable scenario: musical instrumentsProduct category: maintenance toolsModel: 25 in oneMusical instrument accessories: Western stringed musical instrument accessoriesMusical instrument accessories: maintenance tools, string changing toolsMeasure the height, character, nut, saddle and other parts of the guitar.ABS material: hard plasticSize: 51mm 90mm 5.8mmWeight: About 45gScale displayed: mm and inchSuitable for all kinds of guitars, such as intestinal guitar, electric guitar (high and low string height), acoustic guitar and bass guitar (including six string bass guitar).Just put this card on the string and you can intuitively find the appropriate string height. String action conversion table with 12th character printed on one side. The back is used to adjust the chord distance.Radius: 7.25 ", 9.5", 10 ", 12", 14 ", 15", 16 ", 17" and 20 "Material: stainless steel-The top and bottom surfaces of each gauge have accurate circular arc, and the shape is easy to fit under the chord. Use the bottom curvature to determine your fingerboard radius, and the matching top curvature will be a reference for setting the chord saddle height for best performance. They are also convenient to match the height of the polar piece of the pickup with the radian of the string.-Top edge: used to determine the appropriate height adjustment of bridge saddle-Bottom edge: used to check the radius of nuts, finger plates and saddlesThe 3-in-1 multifunctional guitar tool is made of high-strength ABS hard plastic handle and stainless steel, with comfortable touch and durability.String reducer using the hardened steel scissors on the string cutter, you can clean off the old strings to remove them faster and easier, and trim the excess strings after cycling the new strings through the mixer.Nail lifter - designed for acoustic guitarists. This makes it easy to remove stubborn pins without risking damage from pliers and other tools.String winder - quickly and efficiently tighten the string, which is convenient for us to adjust the stringThere are 13 round files and 1 flat file in the pillow groove polishing file set, which is suitable for string instruments such as guitar, mandolin, bass, four string piano and banjo.The round file is used to polish the chord slot, which makes the chord slot very smooth and can work quietly.Flat files are used to polish nuts and guitar bridges.Stainless steel material, compact and strong. It is small in size and equipped with a solid aluminum shell for easy storage and use.