[Size] - 50mm, cover diameter: 56mm, slot depth: 12m, opening diameter: 50mm.[Material] - The desk wire hole cover is made of tough and smooth-surfaced zinc alloy material. It has high impact strength, durability, heat resistance, wear resistance and good long-term use performance.[Use] - The desk hole grommet has multiple functions, which can effectively organize messy cables and wires, protect wires from tangling, hide long wires, and provide you with a neat and clean working or entertainment environment.[Easy to install] - The wire hole cover adopts a simple style design and is easy to use. Drill or cut a hole on the mounting hole diameter through the mounting surface, and then insert the desk cable grommet into the hole.[Widely used] - The desk wire hole insert is widely used in computer countertops, computer components, entertainment systems, office desktops, office equipment, dressing tables, lockers, wall cabinets, etc. in homes and offices.