About this item ╬tra high strength material: Built from quality glass fiber and polyamide nylon.It is stable to falling and impact. ≮tegrated PCB connections for direct soldering of your ESCs, make your esc,power supply and other wiring more quickly and reliable. ␲e-threaded brass sleeves for all of the frame bolts.Colored arms for orientation to keep you flying in the right direction. ⌡rge mounting tabs on main frame bottom plate for easy camera mounting. Easy assembly. ≦ you have any problems, please feel free contact us. We will try our best provide you with better service.