Grommet Kit: Includes 100 Piece Grommet Grommet Kit (with 100 grommets and washer, individually packed in PE bag), punch tool and attached tool, all in plastic box without damage. Copper Grommet: Made of quality cupronickel and galvanized on the surface, with very high corrosion resistance and shiny appearance, easy to rust. EASY TO INSTALL: Complete eyelet punch kit makes installation easier. First use the punch tool to punch a hole in the tarp, then take the eyelet kit, then use the attached tool to secure the eyelet kit securely. Wide range of uses: The grommet kit is suitable for canvases, tarpaulins, tents, curtains, backpacks, leather crafts, repair and decoration. Size: The inner diameter of these copper eyelets is approx. 1/2 inch, outside diameter is 5/6 inch, height is 1/5 inch, great props for various craft projects. Product Description Features: - 100 metal eyelets, one black punch, placed in a transparent storage box. - The buttonholes are 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 canvases, tarps, tents, awnings, belts, clothing, wallets, bags and other fabrics. - The inner diameter of these copper eyelets is approx. 1/2 inch, outside diameter is 5/6 inch, height is 1/5 inch. Specifications: Material: Copper Color: Silver Inner Diameter: 1.2cm / 0.47inch Outer Diameter: 2.1cm / 0.83inch Quantity: 100 pieces Package include: 100 sets of silver eyelets 1 x punch 1 x base 1 x installation rod 1 x storage box Note: Please do not drill holes in thick material.