Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

- Notice:Single Aluminum Propeller， 64-73mm Casing Version. We have installed the 2pcs rubber rings on the fan already， you can remove it by yourself.- This Single Propeller Fuel Saver Turbonator Fan provides a more dynamic control over the intake system by forcing powerful airflow into the combustion chamber at a high speed.- Once the engine is started， the propellers spin to create a maximum turbulence in the incoming airstream to allow enhanced fuel atomization in the combustion chamber， resulting in significant increase in horsepower and better gas / fuel millage.- With simple installation steps， you can enjoy going faster and furtherer whilst saving gasoline all at the same time !- With rubber rings for fitting adjustment[Specification:]- Material: Light Weight High Quality Aluminum- Size: Fit all intake hose from 64mm to 73mm.- Note: A quick measurement is suggested to ensure best fitment due to possible air intake hose size discrepancies between countries- Installation:- Remove air inlet hose located between air purifier.- Put the Intake Fan into the air inlet hose.- If the Intake Fan is smaller than the air inlet hose， use the rubber holder attached to increase its diameter so it can fit in the tube.[What's inside:]- 1 x Single Propeller Turbo Air Intake Saver Fan- 2 x Non-slip Rubber Holder