2 Pairs ( 2 CW + 2 CCW) Quick release: Installs and removes quickly and easily. comes with extra installation kit. Phantom 4/ pr/ advanced/ V2 propeller is easy to mount, secure, durable and well-balanced propellers with a powerful thrust. High Quality: Very strong and light weight, smoother, responsive. Propellers are the same aerodynamic, low-noise designed props that are included with the Phantom 4 drones. They are engineered to deliver a quieter flight with increased efficiency and extended flight times. These propellers also feature a quick release design to help make changes quick and easy.