Description: 10 piece frets nut file tool: Equaling flat, square, barrette, cutter, crossing, round, oval, half round, triangle and warding file. Cover full range of shaping, forming, carving, engraving & material removal Grinding stone and fingerboard protector: Professional tool for polishing saddle, nut and frets. Easiest and Safest way to Polish and Clean Guitar Frets without aggressive treatment Grinding Sponge: Could grind and polish all metal things, soft and can be washed Not only used for guitar, but also can be used for other string instruments, like Ukelele and Bass Size Chart: Fret Nut Files Length: Approx. 14 cm/5.51 inch Grinding Stone(LxWxH): Approx. 9.9x1.1x1.1cm/3.9x0.43x0.43inch Fingerboard Protector(L): Approx. 7.7 cm/3.03 inch Grinding Sponge(LxWxH): Approx. 9.9x6.8x2.9cm/3.9x2.68x1.14 inch Package Includes: 1 Set 10 Size Steel Stainless Files 1 Piece Nut and Saddle Grinding Stone 2 Pieces Fingerboard protector 1 Piece Grinding Sponge Note: Due to manual measurement, there may be 1-2mm error in size