Features: 1. Save fuel, save money, more miles per gallon 2. 50% reduction of carbon monoxide and hydrocarbons 3. Helps pass emission testing 4. High octane performance with lower octane fuel 5. Improved performance - quicker starts 6. Stops scale build-up and corrosion in engine 7. Reduced wear on O2 sensor and catalytic converter Specifications: Color: Yellow Material Type: ABS Size: 37mm * 29mm Simple to install: Neither tools nor cutting of fuel lines required Install magnet as close to engine as possible Magnetic Fuel Savers are held in place by the cab Package: 2 pcs Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!