Dear customer, if you have any questions after receiving the goods, please feel free to contact us. We will handle it as soon as possible. Thank you for your support.Features:Functional car accessories: Our car fuel saver helps stabilize, increase power, speed up engine starts, improve brake sensitivity, and increase engine efficiency and power performance.Additional features: This car fuel saver is well designed to help stabilize circuit voltage, avoid large fluctuations, increase power torque and speed up starting.Easy installation: Simply plug this item into your car's cigarettes lighter and it will start saving gas and money immediately.Practical car accessory: The compact and portable fuel saver makes your engine last longer and allows you and your family to enjoy a more environmentally friendly trip.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurement Description:Material: ABS electronic componentsSize: 8*11*2.5cmInstructions:Compatible with any vehicle From trucks to sedans, it works just fine Simply plug it into your cigarettes lighterNote: Plug it into the cigarettes lighter, not into a power outlet or other 3-in-1 devices, as this will not work.Package List:1/2pcs Fuelsync Gas Saver