Feature: 1. Provide economical solutions for canvas, tarps, tents and pool coverings 2. This grommet tool kit is suitable for shoes/shoelaces, clothing, crafts, etc. 3. Easily fix the metal buttonhole in place with a hole cutter and matching mandrel 4. The mandrel surface has a unique design, non-slip and provide a safer grip 5. Come with plastic storage box, suitable for storing small grommet tools, easy to take when sewing Specification: Item Type: Grommet Tool Kit Specification: 1 Box Main Material: Iron (composed of complex materials) How to Use: 1. Prepare products and tools 2. Use a punching rod to punch the fabric 3. Pass the eyelet through the hole 4. Fasten the gasket on the other side 5. Put the product on the mounting base 6. Use the installation stick to tap and install 7. Installation is completeSize: Approx. 12mm / 0.5in. Package List: 12 x Golden Grommet12 x Silver Grommet12 x Black Grommet12 x Bronze Grommet12 x Golden Gasket12 x Silver Gasket12 x Black Gasket12 x Bronze Gasket1 x Punch Rod1 x Mounting Rod1 x Installation Base1 x Storage Box