Propel 2-pk. RC Chrome Flyer Helicopters Propel 2-pk. RC Chrome Flyer helicopter This two-pack of propel RC Helicopters features two chrome flyer choppers plus accessories in their own individual gift boxes. Features: Contra-rotating propulsion system enhances flight control,Swinging tail boom provides Yaw and sway motions. Hobby-style collapsible rotors adds convenience.Full featured remote also charges the helicopter.