What is this?These are the grommets used to cover panel holes. Rubber grommets grip wires and cables passing through holes, keeping them secure while protecting them from cuts and snags. The rubber grommets are mainly used to protect cables or wires from being scratched by electrical boxes and some wooden boxes. They are widely applied for hole plugging, outlet sealing, and other industrial equipment.What will I get?Mounting Hole Dia.: 34.8mm/1.37-inch; 41.3mm/1.63-inchSize: 41x25mm/1.61x0.98-inch; 48x30mm/1.89x1.18-inch (OD x ID)Height: 16mm/0.63-inch; 16mm/0.63-inchMaterial: Silicone RubberIn the package of: 1 Set x Rubber Grommet (2Pcs each size, 4Pcs in total)Are there any advantages of the product?The rubber grommets are made of silicone material that offers excellent flexibility, shock resistance, and good elasticity.They are waterproof, dustproof and have strong insulation, which is suitable to use outdoors.How to use it?To use the Rubber Grommets, simply insert the cable or wire through the grommet's center hole and then install the grommet into the desired location.What should  I notice?Before using these Rubber Grommets, please ensure that the grommet's dimensions match your cables'Sizes. Do not force the cable or wire through the grommet if it does not fit properly.