This Professional Grade Guitar Nut Slotting Filing Set includes 13 round files and a flat file made of stainless steel. The package contains 1 set of string saw rods for precision nut Maintenance slot upkeep and cleaning. This tool is designed for guitar nut maintenance and luthier supplies, specifically for filing and shaping nut slots between guitar string changes. **NOTE** Case colour & size may vary slightly CHECK OUT MY OTHER GUITAR PRODUCTS