Ehang Ghostdrone 2.0 Self-Tightening Propellers Black (4 pack)Format: Retail Pkg Age: Platform: N A Drones these days arent just a hobby electronic. Time and again drones have proved to be useful for a lot of people. Be it managing traffic, managing high definition aerial shots for movies or even for capturing your experience while bungee jumping; drones have proved to be a useful piece of technology. Ehang GHOSTDRONE 2. 0 Propellers are reversible two bladed self tightening propellers. It includes two pairs of