Silicone Material - The cable grommets are made of silicone, which has good ductility, high temperature resistance, waterproof, non-slip, wear resistance, and is strong and durable. The wall grommets have strong sealing and are not easily broken. Cable Protection & Management - Cable grommets can protect cables from damage and wear caused by friction with edges or rough surfaces, extending the life of the cables. Wall bushing grommets can reduce cable clutter and keep cables organized and clean when routing them through the wall. Easy Installation - The wall cable grommet is easy to install. Simply open the thread strip opening, place the cable into the grommet, insert it into the wall hole, and adjust the position. The cable pass-through grommet has threaded strips to enhance the sealing performance, allowing it to fit more securely into the wall hole and prevent it from slipping during installation. Wide Application - Suitable for many types of cables, including Ethernet cables, these wall mount grommets can be used for managing cable installations in the home, office, or any other environment where cable management is required. Material: Silicone Color: Black Hole Size: 7mm/0.28 inch Total Length: 38mm/1.49 inch Rod Diameter: 19mm/ 3/4inch Overall diameter: 26mm/1.02 inch Package: 4Pcs x Wall Grommets