Optimal Size for Efficiency: Featuring a 4-inch diameter, these round brush grommets are perfectly sized for inserting into standard 4-inch holes. They accommodate large cable bundles or PDU plugs with ease, ensuring a streamlined cable management process in high-demand environments. Ease of Installation: The split design of these grommets allows for quick and easy installation and removal, facilitating efficient cable management without the need to alter existing setups. This design feature ensures a hassle-free application and removal process, ideal for dynamic tech environments. Enhanced Security with Robust Fittings: Each grommet comes equipped with four screw fittings, enabling secure attachment to walls or ceilings. This feature ensures that the grommets remain firmly in place, providing a reliable solution for managing and routing cables in various installations. Construction with Debris Protection: Made from impact- plastic, these grommets are built to last. The integrated bristles effectively block dust and debris, safeguarding the cleanliness and functionality of your cable areas, which is crucial for maintaining system integrity. Versatile Utility for Organized Spaces: These round brush grommets are ideal for managing large data cables and wires, especially in computer rooms and data centers. Their design supports efficient airflow and cable organization, contributing to better system performance and space utilization. Color:Black Material:ABS Package Contents: 2 * brush threading box 8 * screw 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.