Features:Brand new and high quality.Turbo fuel saver fan with single propeller.Provides a more dynamic control over the intake system by forcing powerful airflow into the combustion chamber at a high speed.Universal fit for air intake hose with diameter between 65mm and 74mm (2.5 - 2.9 inch) .Horsepower enhancement and fuel saving capability.Come with 2pcs rubber holders.Max speed: 55，000R/Min.Material: aluminum alloy and rubber.Color: blue.Size: approx. 6.3cm x 6.3cm x 5cm.Package Included:1 x Turbo Air Intake Fan (Single Propeller)2 x Rubber HolderNo Retail Box. Packed Safely in Bubble Bag.