Size: Inner diameter 20mm x Hole diameter 25mm, Pack of 10 【Soft Rubber Material】Cable grommets are made of soft rubber material, protecting cables and wiring while also maintaining an aesthetically pleasing appearance. They feature a simple black design. 【Ideal for Cable Protection】These grommets utilize rubber bushings to securely hold cables and wires in place. They protect against friction and external impacts, offering reliable, double-sided protection and excellent durability. They also function as electrical rubber grommets. 【Versatile and Convenient】Suitable for a wide range of applications, including offices, homes, factories, and vehicles. Especially for DIY projects and situations with varying mounting diameters, we offer sets of 7 sizes and packs of 10. Recommended for those who want to protect wiring and electrical cables while improving work efficiency. 【Easy Installation】 1. Make a hole in the installation location (check the size chart for the mounting diameter). 2. Cut the membrane of the rubber bushing with a cross mark. 3. Insert the grommet into the hole to complete the installation. The round shape makes installation easy, and the slight elasticity allows for use even if the inner diameter is slightly larger. 【For DIY Enthusiasts】This product, which achieves secure cable protection while maintaining a clean appearance, is the perfect item for those who want to easily organize cables and protect electrical wires.