Features: This cable grommet simplifies cable routing, eliminates clutter, seal wall openings, and protects cables from sharply edges. Make of flexible, tear resistant silicone that can bear repeated cable insertions and removals without cracking or breaking down over time. Keep your cables secure with our grommets' firmly grip that prevents accidental pulls or yanks from damaging wire, yet lets cables slide through holes easily for connecting and disconnecting. With prepunched holes and easy press fit designs, our cable routing kits is quick and easy to install in drywall or wood. It provide clean, protect routing of Ethernet, telephone, or other wiring through wall, floor, or furniture for both residential and commercial use. Specifications: Materials: Silicone Size: about 5.2x3.50cm/2.05x1.38inch Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color. Package includes: 4Pcs/set Wall Grommets