Great for workshops and plumbing services, wires, cable, firewall, PVC , gas tank sealing. With good electrical resistance, wear resistance, corrosion resistance, resistance and heat resistance. According to the thickness of specific cable, you can freely cut the diameter of the rubber plug, and easily snap the rubber grommet directly into the hole. Features - Color: Black. - Material: Rubber. - Size: 8.00X4.00X0.50cm/3.14X1.57X0.20inch. - More durable, last a long time, rubber. Convenient and resealable. - Rubber grommets are used to protect/cover cables, wires, holes in metal panels and other materials from possible mechanical or chemical . - Such as for cylinder, valve, pump, electrical appliance, chemical , spray, water , decoration etc. - Made of and durable rubber material. It can maintain its effect in harsh environments. - Flexible, convenient and re-sealable, the rubber rings will fit those drill/holes precisely and efficiently. Package list: 4 x grommets