This is one spare arm for the S500 quadcopter and the S550 hexacopter frame in case of loss or damage. There are 4 colours to choose from; black, white, red or blue. The design of these S500/S550 arms ensures durability and reliability. They are made with a carbon fibre rod that is enclosed by the plastic surrounding that you see to ensure an excellent rigidity to your S500/S550 arm.
