Air Inflation Device Takes air from your automobile tire and inflates your items. Screw the Airbus onto your automobile wheel stem, keeping the pinch clamp closed. Screw the other end of the Airbus onto your bicycle wheel stem and slowly release the pinch clamp for the desired amount of air. Or, use the enclosed inflation needle to inflate your sports balls, air mattresses, or whatever! Airbus works in seconds, doesn't use chemicals and is environmentally safe.