Grommet Kit: Includes 100pcs grommet grommet kit (with 100 grommets and washer , individually packed in a PE bag), a punch tool and an attached tool, all in a damage-free plastic box.Size:Inner diameter: 12 mm (1/2 inch ) and outer diameter: 21 mm (5/6 inch). With a plastic storage box, approx. 6.9 x 3.9 x 1.3 inch / 14 x 8 x 3.3 cmExcellent material: The eyelet kits are made of quality copper-nickel and surface galvanized, with high corrosion resistance and glossy appearance, very difficult to oxidize.Easy to use: Grommet eyelet kit makes installation easier. First use the hole punch tool to punch a hole in the tarpaulin (fabric), then take the eyelet set and finally attach the eyelet set with the attached tool. Please put a rubber pad or wooden board when punching holes to prevent the puncher from becoming dull.Wide range of uses: The grommet kit is suitable for canvases, tarpaulins, tents, curtains, backpacks, leather crafts, repair and decoration. (materials with a thickness less than 1 mm) Grommet Kit Tools Metal Sets Eyelets 100 Set Grommets Eyelets Kit for Canvas Tarpaulin Tent RepairFeatures:- 100 metal grommets, a 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 eyelets and metal joints fit together well.- Durable buttonholes are easy to use and are ideal for canvases, tarps, tents, awnings, belts, clothing, wallets, bags and other fabrics. br>FEATURES:Material: copperColor: silverInner diameter: 12 mm (1/2 inch)Outer diameter: 21 mm (5/6 inch) Quantity: 100 setPackage content:1x eyelet kit (100 sets).Note:1 . Remember to use a wooden support to avoid damaging the hole cutter tool2. Wear protective gloves when using3. Can mark on fabric before use"