Label:Yes Materials: Silicone Rubber Hardness: 50° Temperature resistance: +250°~-40° Color: Black, White Product Name: Rubber Wiring Grommet 1. Rubber grommets grip wires and cables passing through holes, keeping them secure while protecting them from cuts and snags. 2. The rubber grommets are mainly used to protect cables or wires from being scratched by electrical boxes and some wooden boxes. 3. They are widely applied for hole plugging, outlet sealing, and other industrial equipment. 4. Made of silicone rubber material, the grommet is flexible and durable, with high temperature and corrosion resistance. It is waterproof, dustproof and has strong insulation, which is safer to use. 5. The unique buckle design fits the hole better so that it is easily secured for better wire protection. 6. Please check if the size meets your requirement before ordering. Package List: 4 x Snap Rubber Grommet Hole Plug Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm size erroers due to manual measurement. 3.1cm=0.39'.