The firewall plug grommet helps protect wires and cables from abrasion and scratches caused by sharp metal edges, corners and rough surfaces, reducing the possibility of damage and isolating them from rain and dust. Widely used in electrical appliances, cabinets, automotive parts, cylinders, metal panels, valves, sockets, office equipment and pipelines.SpecificationColor: BlackMaterial: RubberDrill Hole Diameter: 60mm / 2-3/8 inchInner Diameter: 50mm / 2 inchOuter Diameter: 66mm / 2.6 inchGroove Width: 3mm / 0.12 inchTotal Height: 8mm / 0.31 inchPackage List: 10pcs x Rubber Grommets for WiringAdvantageMade of rubber material, single-sided wire grommets are flexible, durable and crack-resistant, which feature characteristics such as corrosion resistance, high temperature resistance, aging resistance, flame retardancy, insulation, high elasticity and waterproofing.Rubber hole plugs are suitable for managing cables and cords while preventing tangles and damage to maintain cleanliness in homes, offices, etc.InstructionRubber plugs for holes are easy to install. Simply insert the rubber grommet into the drilled hole, cut the diameter of it along the cross slot according to the cable thickness, then pass the wire through for quick installation. By default, the grommet is fully sealed to plug up unused holes.Note: Regularly inspect for wear and replace promptly if needed. The size is measured manually and there may be some errors.