Grommet kit: includes 100 grommet grommet kits (with 100 grommet and gaskets, individually packaged in a PE bag), punching tools and additional tools, all in a plastic box, no damage . Copper buckle: It is made of high-quality white copper, and the surface is galvanized. It has high corrosion resistance and luster, and is not easy to rust. Easy to install: The complete hole punch kit makes installation easier. First use a punch tool to punch holes in the tarp, then take out the eyelet kit, and then use the attached tool to securely fix the eyelet kit. Wide range of uses: The grommet kit is suitable for canvas, tarpaulin, tents, curtains, backpacks, leather crafts, repairs and decorations. Size: The inner diameter of these copper holes is approximately. 1/2 inch, outer diameter 5/6 inch, height 1/5 inch, it is an excellent prop for various craft projects. Product Features: -100 metal eyelets, a black logo, placed in a transparent storage box.-The buttonhole is made of high-quality metal and can be used for a long time. Each set of metal eyelets and gaskets fit together well. -Durable buttonholes are easy to use and are ideal for canvas, tarps, tents, awnings, belts, clothes, wallets, bags and other fabrics. -The inner diameter of these copper holes is approx. 1/2 inch, outer diameter 5/6 inch, height 1/5 inch. Specification: Material: Copper Silver Inner diameter: 1.2cm / 0.47inch Outside diameter: 2.1 cm/0.83 inch Quantity: 100 pcs The package includes: 100 sets of silver eyelets 1 x Punch 1 x base 1 x mounting rod 1 storage box Comments: Please do not drill holes in thick materials.