High-quality Material: Our desk grommets are made from top-notch plastic material, which is environmentally friendly, odorless, scratch-resistant, not prone to break or fade, sturdy and long-lasting. Easy to Use: Simply drill an appropriate hole using the provided hole saw (suitable for drilling wood boards only) and insert the cable grommet into your desk and cover it with the plate. Practical Design: The desktop hole cover is sealed with a brush to prevent dust penetration, making it perfect for cable organization. Now, no more worries about tangled cables and wire wear and tear. Wide Applications: Cable grommets can be used to organize phone cables, USB cables, mouse cables, keyboard cables, data cables, or other wires for desks, office equipment, home and school entertainment systems. Package: which keep cables tidy and maintain a clean and organized office area, solving messy wire issues. Aperture: 60MM Material: plastic colour: Black+red Package Contents: 20 x wire hole covers 1 x hole opener Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.