What is this?Table cord grommets can smartly organize wires. It is widely used for the computer desk, the background wall, the cabinet and so on.What will I get?The desk grommet, we provide here, is in the size of: Round Grommet Drill Hole: 30mm / 1.18-inch; Fit for Plate Thickness: 14mm / 0.55-inch; Inner Diameter: 26mm / 1.02-inch; Overall Size: 38.5 x 17mm / 1.52 x 0.67-inch(OD*H); Material: Nylon; Color: Dark GrayIn the package of: 3x HeatsinkIs there any advantages of the product?Made of nylon plastic, with a smooth surface and good insulation, it can well protect the cable and avoid cracking.How to use it?Steps of installation: 1.Trace the body of the grommet onto your desk; 2.Place the grommet in the hole; 3.Pass through your cable or cord.What should I notice?Please choose the correct diameter before purchasing.