Description: Generally, the current on the cathode of the car comes back to the battery cathode through the electric appliances. As all know, the car body is made of steel, so the original current loop design can produce impedance, causing circumstance not smooth or lost and affecting seriously on the electrical appliances. Therefore, connecting the electrical applicances and the car body directly together cathode of the battery with the high-performance enforced ground wire can greatly improve the circumfluence and the top choice to improve the performance of the car electrical appliances Features: Improve startup performance, which makes the car start faster and more smoothly. Enhance spark plug fire, efficiently reinforce engine horsepower. Increase the efficiency of produce electricity and charging, prolong battery lifespan. Enormously improve engine combustion efficiency, fuel saving, economical and practical. Also improve the brightness of the headlights, more safer to driving at night. Specifications: Condition: 100% Brand New Material: PVC Color: Blue Item Quantity: 5pcs Size: 100cm/39.4in(2pcs), 80cm/31.5in(2pcs), 60cm/23.6in(1pc) Package Weight: approx.457g Fitment: Universal Package List: 5 * Car Earth Cable Package List 1Improve startup performance, which makes the car start faster and more smoothly 2Enhance spark plug fire, efficiently reinforce engine horsepower 3Increase the efficiency of produce electricity and charging, prolong battery lifespan 4Enormously improve engine combustion efficiency, fuel saving, economical and practical 5Also improve the brightness of the headlights, more safer to driving at night