Guitar Repair Kit Threshold Nut File Grinding Stone Sponge Fingerboard Protector Description: Threshold nut file tool: flat, square, pin, cutter, cross, round, oval, semicircular, triangular and protective file. Includes full range of shaping, forming, carving, engraving and material removal Grinding stone and fingerboard cover: professional tool for polishing saddle, nut and frets. The easiest and safest way to polish and clean guitar frets without aggressive treatment Grinding sponge: can grind and metal things, soft and washable Not only used for guitar, but can also be used for other stringed instruments such as Ukelele and bass Size Chart: Length of threshold nut files: approx. 14 cm/5,51 inch Grinding stone (LxWxH): approx. 9,9x1,1x1,1 cm/3,9x0,43x0,43 inch Fingerboard protector (L): approx. 7,7 cm/3,03 inch Grinding sponge (dxsxw): approx. 9,9x6,8x2,9 cm/3,9x2,68x1,14 inch The package includes: 1 set of 10 stainless steel files 1 piece. Grinding stone for nuts and saddles 2 pieces fingerboard protector 1 piece sanding sponge : Due to manual measurements, a 2mm size error may occur