Quantity - Comes with 12 plastic desktop hole covers that fit a 50mm (2") diameter hole for wire management. (Please receive promo code on product page when ordering) purchase to get a better price.)Desk Hole Grommet - Material: ABS; Overall diameter: 63.5mm/2-1/2"; Height: 20mm/4/5"; Mounting Hole Diameter: 50mm/2" Detachable Wire Grommet - With an opening hole sleeve that can open the hole and the snap-on top cover, controls the size of the opening and snugly fits the cable and wire going through the hole. Easy Installation - Start by drilling a hole, then place the main part of the washer directly into the hole and begin to hide all the cables and wires.Efficient Cable Management - Neatly organize cables from computer desks, PC devices , office equipment, home, office and school entertainment systems.12 packs of desktop computer grommets. Organizer Grommets - Can organize wires from desks, PC peripherals, office equipment, entertainment systems, helps keep your place neat and organized, free from the hassle of messy wires. Grommet Mounting Hole Size- These computer desk grommets fit directly into a 50mm diameter recessed hole in your desk.With an open hole on the snap cover- The hole design allows the cable to easily pass through the eyelet of the desk table and keep it better. Removable Cover- The slotted cap is removable, so you can put a plug through and then replace the cap with the slot on the cord; Or if you have a lot of cords, you can use these plastic desk grommets without the caps.Specification:- Material: ABS - Color: Black- Total diameter: 63.5mm/2-1/2" - Height: 20mm/4/5"- Mounting hole diameter:50mm/2"Content:12 x Plastic Desktop Grommet Note: The data are all manual measurement, please allow 1 error - 3cm, due to the light and display difference, there will be some color difference, depending on the physical object received.