Grommets are rubber collars that are used in penetration sections on the body to protect electric wires, tubes, and hoses, or to waterproof them. Recently, a resin (elastomer) with the characteristics of rubber has also been used.

Clamps fasten wiring harnesses to the body.

Protectors are external parts made of resin or metal that are attached to wiring harnesses to protect them or to facilitate their assembly, according to the shapes of the body or equipment.

There are rubber rings that ensure waterproofing between connectors and rubber seals that are set up at the time of processing to ensure waterproofing between terminals and connectors.

Tape and tubes are used to bind electric wires.