A:AnswerYes you would need to order two of these. It comes with one of each propeller variant (silver ring and non-silver ring). I don't know why they don't sell them in four packs
A:AnswerDJIs propellers are specifically designed for each aircraft they produce. The props may fit but DJI has invested alot of money and time into engineering their drones the true FAA aircraft regulations and standards. I would just stick to props that are for your model.
