Durable material: The hole cover on the desk is made of white silicone, which is durable, corrosion-resistant, very durable and stable, and it can be applied many times Easy to install: you need to drill a suitable hole first and the recommended diameter is 0.97inch/24.5mm, then put the protective silicone cover in the hole, so that you can do a good job of cable management Suitable size: The silicone desktop grommet is about 1 inch, suitable for wires with a diameter of 1 inch or cables with a diameter of less than 1 inch, giving you a neat desktop</ p> Wide Range of Applications: With these desktop cable grommets, it's a convenient way to organize wires and cables efficiently; It can also be applied to computer desks, PC peripherals, office equipment, home, office and school entertainment systems Feature: Practical function: Wire grommets are usually applied to protect or cover holes and to protect cables or wires from sharp corners or edges, which can also tidy up your desktop. Wide usage: Desktop cable grommets are suitable for computer desks, PC peripherals, office equipment, home entertainment systems, office and school , which makes your desktop more tidy. Features: Quantity: 12 pieces White color material: silicone Size: Inner diameter: 25 mm/ 1 inch Outer diameter: 29 mm/ 1.1 inch Package includes: 12 x Grommets Warm Notes: Due to manual measurement and different measurement methods, there may be some errors.