Rack weight:282g Motor wheelbase:450mm Takeoff weight:800-1700g Products include: Rack center plate:upper plate + lower plate Moment arms:4 Screws:25 M2.5x6 frame screws, 16 M3x8 motor screws Configuration recommendations: Recommended propeller 9443 1045 1047 Recommended battery 3S/11.1V/2200-5200MAH Recommended motor 2212-2216 (stator size) Recommended ESC 15A-40A The appearance, color, and printing of the product from batch to batch, but this does not affect use. Colour:A:Black-Red Rack Material:Nylon+fiber+PCB Package Contents: 1 * F450 Drone Frame 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.