【What is Earthing?】 Over time, factors like rain, car washes, sea breeze, and de-icing agents can cause rust in electrically conductive parts. This can impede the flow of electricity, ultimately reducing a car's performance. By using earthing wires to improve the flow of electricity at bottlenecks, you can restore the car's original performance. Benefits include improved starting, throttle response, and fuel efficiency! This is a very convenient item for bringing out the potential of your car. It's a universal type with flexible installation, making it compatible with most vehicles. Improves fuel efficiency, starting, response, and more! ◇ Wire diameter: Approximately 9mm ◇ Length: 100cm x 2, 80cm x 2, 60cm x 1 ◇ Includes mounting screws and adjusters ◇ Color: Red * The degree of improvement varies depending on the vehicle and environment.