Review on Readytosky® S500 Quadcopter Frame: Extreme Performance FPV Drone Kit with Carbon Fiber Landing Gear by Charles You

Great frame but use thread lock. The supplied screws have NO thread lock. I used Thread Lock Blue. I flew it 3 times and crashed once on the frame with no damage (my fault I hadn't balanced the UAV). The legs are the weakest link so I used a cutter wheel and removed 1 inch from them. I bought a second frame and extended the battery holder to use the DJI 2200mAh battery.