Car power saver – high performance with improved fuel efficiency. Fuel saver – compatible with cars, buses, trucks, scooters, generators, motorcycles, and ambulances. Magnetic fuel saver – may assist in reducing emissions and help with emission testing. Vehicle magnetic fuel saving device – easy to install; no tools or fuel line modifications required. Install as close to the engine as possible. The magnetic saver is secured in place using the provided clamp. XP-2 fuel technology – helps reduce carbon monoxide and hydrocarbon emissions. Save fuel and money, achieve more miles per gallon, with reduced carbon monoxide and hydrocarbon emissions. Color: yellow Material: ABS Package Contents: 4 x car fuel saver Note: The package includes only the items listed above. Other accessories or products shown are not included. Note: Lighting and display settings may cause slight variations in color between the image and the actual product. Measurement error allowance: +/- 1-3 cm.