AeroHance GasPods Save Fuel by Making Vehicles More AeroDynamic Attach Magnetically to Car Roof - Kit of 9 GasPods GasPods save fuel by extending laminar air flow further behind vehicles, reducing drag GasPods are easy to install, with 2 neodymium rare earth magnets rated to hold GasPods on your vehicle at all speeds and in all weather conditions GasPods won't damage paint, seated with a cushioned gripping pad made for AeroHance by 3M CFD analysis, one way the auto industry conducts wind tunnel tests, proved a kit of GasPods placed on a car reduces its drag coefficient by 5.2%-6.7%, which means fuel savings of more than 1 mpg for the car tested GasPods are Made in Southern California, Made in USA