Universal Earth Kit - Cut to Fit - 4 Meters With a length of 4 meters, you can easily ground around the engine. This is a cut-to-fit type, so you can install it to match your car and your preferences. Pre-cut kits often have fixed lengths that don't fit your car, but with this single-piece kit, you don't have to worry about that. What is Earthing? It assists the flow of negative current through the body, reducing resistance and regulating the flow of electricity. It can be expected to stabilize electronic components and reduce audio noise. ● Reduced engine speed fluctuations. ● Stable idling. ● Improved throttle response. ● Improved audio quality (noise reduction). Please refer to the image for the set contents. Notes: ● Brand new. ● Please cut to your desired length. ● Includes an easy-to-understand installation manual.