There are 3 sets of propellers included in the propeller compartment of the main case. Each set consists of 1 Clockwise and 1 Counter-Clockwise propeller. Two sets of propellers are required for flight. They are marked with arrows for the direction to tighten and loosen, but can easily be matched to their corresponding motor by looking for the white dot as is shown below.
GPS Stand must be flipped up before a flight or rotating propellers.