Amazon.com: QWinOut 12x4.2 1242 Self-Locking CW/CCW Carbon Fiber Propellers Prop for DIY Drone Compatible for DJI E600 MultiRotor RC Quadcopter (1 Pair) : Toys & Games
Amazon.com: DJI Original 9'' CW+CCW Props 9450 Self-tightening Propeller 4 Pcs for Phantom 3 Professional / Advanced / Standard Quadcopter : Toys & Games