Item Type: FPV Racing Drone Frame_x000D_Main Material: Carbon Fiber, Plastic_x000D_Size: _x000D_Wheelbase After Installation: Approx. 225mm/8. 86in_x000D_Motor Mounting Hole Size: Approx. 16x19mm / 0. 63x0. 75in _x000D_Camera Mounting Size: Approx. 19mm/0. 75in_x000D_Applicable: For FPV Traversing Machine 1Applicable: The FPV racing drone frame also has reserved 30. 5x30. 5mm / 1. 20x1. 20in and 20x20mm / 0. 79x0. 79in hole control positions for flight control. 2H Shaped Structure: Carbon fiber quadcopter frame adopts H shaped structure, which does not affect the flying experience at all. On the contrary, the arms are shorter. 3Shock Absorption: FPV racing drone frame adopts shock absorption design, low vibration, safe and stable environment for electronic system operation. 4Fine Workmanship: The corners of the carbon fiber quadcopter frame have been chamfered and polished, with fine workmanship and reasonable structure. 5Premium Material: RC FPV drone quad frame is made of premium carbon fiber and plastic, high strength, strong and wear resistant, long service life.