45mm Black Desk Grommets Gland Cable Gland Plastic PC Computer Desk Cable Glands Cable Hole Cover (6 Pieces) Quantity: 6-pack black cable management grommets; material: made of sturdy plastic, more durable Desk Hole Grommet: Mounting hole diameter: 45mm; overall size: 51 x 20mm (max. diameter x height) Removable Lip: features a small open hole to thread wires through and keep wires neater; the cover is removable, so if you have many cords, you can use the desk grommet without the cover Desk Storage Grommet: allows you to thread wires through the top of your desk conveniently and organized, creating an organized look and keeping cords neater in desks and work areas Application: The desk cord grommet neatly organizes cables from desks, laptops, PC peripherals, office equipment, home, office, and school entertainment systems Due to factors such as manual measurement and display differences, there may be slight differences between individual products and pictures, please forgive me.