High-quality Material: Our desk grommets are made from top- 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 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.