Description:Size - Grommet Size: 31 x 20 x 5mm / 1.22" x 0.79" x 0.2"(OD*ID*H), Punch Tool Hole Diameter: 20mm / 0.79".Material - The sewing eyelets are made of copper with electroplating surface, which is high-strength, anti-rust and not easy to fade. The grommet setting kit are made of 45 carbon steel with polishing surface, ensuring hardness, durability and impact resistance.Features - Once installed, the eyelets are tightly linked and will not fall off easily. The long anti-slip handle provides a comfortable hold.Applications - Widely used in DIY crafts and for punching and repairing clothing, belts, wallets, backpacks, rubber, PVC, leather, etc.Usage Steps - First use a puncher to punch the hole, insert the hole through the eyelet and install the washer, then use the installer and base to tighten the eyelet.
