Features:Sturdy material provides good resistance to damage if case of there is hard landing. Main and top boards are PCB boards, which allows you to solder ESC to them directly. X-structure is flexible and stable, which is suitable for FPV race drone to reach high speed with forceful move. Suitable for 4-axle FPV drone. Colored arms are for orientation to keep you flying in the right direction.Big enough to fit your FPV drone and tuck away all the wires neatly. Easy to install and use. Specifications:Material: Plastic + Glass FiberCompatible Drone: for DJIF330 or othersCompatible Motor: 2212-2200KV (Stator Size)Compatible ESC: 15-30ACompatible Propeller: 6inch (2 blades) / 5inch (3 blades)Compatible Battery: 3S / 11.1V / 1500-2200mAhMotor Mounting Hole Pitch: 16 * 19mm / 0.6 * 0.7inchWheelbase: 330mm / 13.0inchColor: As PicturesWeight: 298gType: RC AccessoryPackage Includes:4 x Engine Arms (2 red, 2 black)1 x F330 Rack Upper Plate1 x F330 Rack Lower Plate1 x Screw Pack2 x Tripod2 x TubeNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..