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 Fiber Compatible Drone: for DJI F330 or others Compatible Motor: 2212-2200KV (Stator Size) Compatible ESC: 15-30A Compatible Propeller: 6inch (2 blades) / 5inch (3 blades) Compatible Battery: 3S / 11.1V / 1500-2200mAh Motor Mounting Hole Pitch: 16 * 19mm / 0.6 * 0.7inch Wheelbase: 330mm / 13.0inch Color: As Pictures Weight: 298g Type: RC Accessory Package Includes: 4 x Engine Arms (2 red, 2 black) 1 x F330 Rack Upper Plate 1 x F330 Rack Lower Plate 1 x Screw Pack 2 x Tripod 2 x Tube Note: 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. .