Zinc Alloy Desk Wire Hole Cover Computer Grommet Table Cable Outlet Port Surface Line Box Furniture Hardware Specification: Material:Zinc Alloy Diameter:18mm/25mm/35mm/40mm/45mm/50mm/60mm Color: Black / Silver Zinc Alloy material, more durable Allows wires and cable to pass through safely and neatly. Keeping your entire computer or appliance cables tidy to give a neat. Used widely in office, home, hotel, bank, etc. Also suitable for vents, wine cabinets, shoe cabinets, wardrobes, etc. Package includes: 1pcs X wire hole cover Note: 1. Please allowed 1-5mm differences due to manual measurement, thank you for your understanding! 2. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item.