avoid this. Tight fitting rubber grommets can also prevent the entry of dirt, air, water, etc. The smooth and sometimes soft inner surface of the grommet shields the wire from damage.

Grommets are generally used whenever wires pass through punched or drilled sheet metal or plastic casings for this reason. Molded and continuous strip grommets, also known as edge grommets, are manufactured in a wide variety of sizes and lengths expressly for this purpose; they are usually a single piece which can be