Package Includes: You will get 4 pcs black/white desk cable wire hole covers. Size: Mounting holes for desk grommet is 60 mm in diameter. The overall diameter is 72 mm, the height is 20 mm. Perfect size for easier cable management. Quality Material: This desk table grommet is made of high-quality ABS plastic, wear-resistant, strong and sturdy. Easy to install: The desk grommets with non-slip threads for more effective fixation on desks. It is also very convenient to use, just take out the cover, then run the wire through the grommet, and cover the cover. Widely Used: The desk grommets can neatly arrange various wires on the computer desk, effectively help you solve the problem of messy wires. Perfect for use in home, school, office, internet cafe, computer rooms. Specifications: Quantity: 4 pcs Color: Black /White Material: ABS plastic Size: outer diameter: 72 mm Opening diameter: 60 mm