ROMA 123mm 2inch Carbon Fiber Frame Kits 2.5mm Arm Support 1104/1106 Motor for RC FPV Racing Micro Long Range Drone Specification: Product model: Roma 2 inch Wheelbase: 123mm Weight: about 38 grams (including prints) Arm thickness: 2.5mm Plate thickness: 1.5mm Lower board thickness: 1.5mm Upper board thickness: 1.5mm Flight control mounting hole: 20*20mm Motor mounting holes: 9*9mm Camera installation hole distance: 19mm The height inside the rack: 25mm Tools required for assembling the rack 2.0 hex screwdriver Recommended configuration: Paddle: 2 inches Motor: 1104/1106 Flight control: miniF4/F7 Battery: 2-3S 550mah