[Packing Includes]Grommet tool set includes 100 sets of silver grommet eyelets (each set includes 1 eyelet and 1 washer), a hole punch, a matching mandrel and a storage box.no need buy extra tool,enough for family use. [ ]The eyelets punch kit is made of metal galvanized , resistance and no deformation. The base is sturdy and .Can be washed in washing machine without being ruined.The metal grommets' inner diameter of 1/2 inch, outer diameter of 4/5 inch. [How to Use]First use a punch tool to punch a hole in the marked area, then pick up the metal eyelet kit, and finally push in the buttonhole. Each group of metal holes and gaskets can be firmly closed together, not easy to split and fall. [Wide Range of Applications]The eyelets gromments are perfect for DIY or repair fabrics, canvas, tarpaulins, awnings, tents, tarps, leather, shoes, clothing, bags, curtains, belts and other cloth items etc. Colour:silver Material:Metal Package Contents: 1 set x Metal Eyelets Grommets Rings Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.