QUANTITY: Eyelet tool set includes hole punch, matching chuck and 100 sets of eyelets (each set includes 1 eyelet and 1 washer) and storage boxWIDE USE: These durable tarp eyelets are suitable for denim, canvas, tarpaulin, tents, awnings and other fabric items or other materials with a thickness of less than 1mmEASY TO USE: Eyelet grommet kit makes installation easy. First use the punch tool to punch a hole in the tarpaulin (fabric), then take the grommet set and finally secure the grommet set with the attached tool. Please put a rubber pad or wooden board when punching holes to prevent the puncher from getting dull.HIGH QUALITY: Made of high quality cupronickel and electroplated surface, with very good corrosion resistance and shiny appearance, not easy to rust.SIZE: Internal diameter: 12 mm (1/2 inch) and outer diameter: 21mm (5/6 inch). With a plastic storage box, approx. 6.9 x 3.9 x 1.3 inch / 14 x 8 x 3.3 cm Grommet Eyelet Kit, 12mm Grommet Tool Kit Metal Eyelets Sets 100 Set Eyelet Kit Eyelets for Tarps Sewing Canvas Tarp Tent 12mm Eyelet Sets Grommet Kit Eyelets Tools Metal Grommet Eyelet Kit 100 sets of eyelet eyelets, one black cutter, in a box of transparent storage. The buttonholes are made of high quality metal. Durable buttonholes ideal for canvas, tarps, tents, awnings, belts, garments, wallets, bags and other fabrics. The inside diameter of these copper eyelets is approx. 12mm (1/2"), outer diameter is 21mm (5/6"), height is 5mm (1/5"). How to use? Drill the hole using a hole cutter->Push the grommet into the hole->Place the gasket on the grommet->Secure it with a hammer. Tips Some parts of the product are sharper. Wear gloves and protect your hands during use FEATURES: Material: copper Color: silver Inside diameter: 12 mm (1/2 inch) Outside diameter: 21 mm (5/6 inch) Quantity: 100 set PACKAGE INCLUDED: 100 sets of eyelets < p> 1 x punch 1 x base 1 x stem installation NOTE: Please do not drill holes in thick materials. Please use it carefully to avoid hurting! Note: The data is manual measurement, please allow 1-38cm error, due to the differences between light and screen, there will be a certain color difference, the specific received in kind prevail.