The quadcopter frame lever is made of PA66+ 30% ultra-high strength material. Fall and impact . The main body adopts integrated PCB board connection, equipped with high-strength gold-plated composite PCB board, so that the power supply, electric regulation and other connections are faster and . The design sinks the motor mounting position and lifts the PCB position to make the quadcopter's center of lower and more stable. The optimized design of large installation space provides sufficient installation space for flight control systems. The quadcopter adopts non-standard M2.5 step screws, which can make the PCB board and the lever firmly connected. Aircraft model: F450 Symmetrical motor wheelbase: 450mm Propeller: 1045 1047 9443 9450 Recommended battery: LiPo (3S 2200MAH-5300MAH) Recommended motor: 2212-2216 920KV-1000KV Recommended power switch: 20A to 30A Colour:black+white Material:PCB Package Contents: 1X F450 Drone With Camera Flame Wheel KIT Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.