Multi-purpose Use: The grommet kits is suitable is great for repairing canvas, tarps, tents and pool coverings, good for shoe / shoelace, clothing, works Complete Grommets Tool Kits: This grommets eyelets sets include 120 eyelets and washers, tool and fastened tool, all in boxes for storage Easy to Use: Just a hole on items with hole, and close the 2 parts of grommets with fastened tool and hammer (not included), easy and quick Size: Eyelets are 0.39 inch (10mm) in internal hole diameter, 0.59 inch (15mm) outside diameter, and 0.15 inch (4mm) barrels height Sturdy and Rustproof: Eyelets metal, thicken, enough strong, with very great resistance and bright looks, anti-rust and secured