UltraFlight Parrot AR Drone 1.0 & 2.0 Upgraded Propellers -Blue (4 pcs) PLEASE NOTE: The initial batch of propellers came defective from the factory (Hence the negative feedback). We have since corrected the issue and the props are now super strong!!! Package includes 4 propellers (2 clockwise and 2 counterclockwise). Propellers are made from a different material than stock and are stiffer than stock and more resistant to breaking!