Flex Fuel Composition Sensor by Haltech Applied in holes to protect cables/wires/lines/cords from sharp corners, edges, possible mechanical or chemical attacks. It can also be used to seal holes that are no longer in use or to make center holes of your own size as needed Features Black Rubber Benefits Protects cables from sharp corners, edges, possible mechanical or chemical attacks Applications Universal What’s In The Box? 1 – Firewall Rubber Wiring Grommet Warranty Haltech Limited Warranty