12V Car Fuel Shark Saving Gas Device Economizer Socket Plug Cigarette LighterFeatures:1.More Horse power and longer battery life.2.It is cleaner emission and save on gas.3.Too easy to use and star working instantly.4.The fuel economizer can Improve the efficiency of the engine.Specifications:Color: As Picture ShowSize: 11cmx2cmPower: 6WPackaged Included:1 x Fuel Economizer(not included other devices)