Product Benefits: 1. Strengthens the current circuits of aging electrical circuits, restoring their performance; 2. Enhances high-voltage ignition for more complete combustion, efficiency, and increased torque; 3. Reduces power loss and extends battery life; 4. Smoother starting and louder horn sound; Product Specifications: 2pcs 100cm, 2pcs 80cm, 1pcs 60cm, 4pcs screws, 4pcs nuts, 1pcs terminal; Ground Wire Product Features: (1) Improve engine starting performance - connect to the motor (2) Enhance sparking and power - connect to the cylinder head (3) Improve power generation and charging efficiency, extend battery life - connect to the generator (4) Improve engine combustion efficiency and save - connect to the injector (5) Improve headlight brightness and make driving - connect to the radiator frame or (6) Improve the performance of car audio and electrical equipment! - connect to the screws around the firewall Smoother idling; More responsiveness and faster acceleration; Connectors such as the generator, , air conditioning compressor, engine block, automatic transmission, and vehicle frame. Color: Material: ABS Package Contents: 1 x Car modification ground wire Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.