Geniune Gemfan 5045 (5x4.5) Orange Propellers for 250 Size Quadcopters and Multi-rotors - Perfect for Zmr250, Fpv250, Vortex Geniune Gemfan 5045 (5x4.5) Orange Propellers for 250 Size Quadcopters and Multi-rotors - Perfect for Zmr250, Fpv250, Vortex