Build in silicone protective pad, it will not scratch the UAV body and will not affect the installation of the PTZ Adopting external expansion designing, not interfere with the flight pictures and provides safe flying Lightweight designing, weighing only about 3.50g, not add burden to flight and is easy to store, portable Aluminum alloy, integrated molding, high strength, with cool appearance Accurate hole designing, screw fixation, stable and not easy to loosen