Material - The desk grommet is made of ABS plastic material, and the surface is electroplated, which is strong, anti-oxidation, non-fading, wear-resistant, corrosion-resistant, and durable. Design - The cable grommet has a large aperture and can accommodate multiple cables, protecting the wires from friction and damage. The desktop hole cover has a metallic luster, a beautiful appearance, well match your desktop. Installation - The installation of the table hole cover is easy, just need to measure the hole diameter and install it directly, or drill a hole according to the mounting hole diameter, and then insert the desk grommet into the hole. Using the included nylon cable ties can reduce cable clutter and keep cables organized and clean. Wide Application - The cable grommets can be applied to computer desks, office desks, computer components, office equipment, entertainment systems, etc. Widely used in the office, home, shop, and more. Material: ABS Plastic, Nylon Color: Gold, Blue Fit Hole Size: 35mm/ 1-3/8 inch Inner Diameter: 33mm/ 1-5/16 inch Outer Diameter: 45mm/1-3/4 inch Height: 17mm/11/16 inch Cable Tie Size: 2.5 x 100mm/0.1 x 3.94 inch(L*W) Cable Tie Label Size: 20 x 13mm/0.79 x 0.51(L*W) Package: 4Pcs x Grommets, 12Pcs x Cable Ties