200 QX Frame Kit, Aluminum/Carbon Fiber: Red The CNC Aluminum/Carbon Fiber Quadcopter Frame Kit is an incredibly strong Frame, from the perfect combination of Aluminum and Carbon Fiber material to form the best rigid block, for maximum stability and long-term durability. This Frame Kit provides a high-quality upgrade product with specialized design features. Four Arms of the Frame are foldable after flight by loosening a little bit four Wing Nuts MH-20QX005WN.