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Lightweight and small, easy to carry and storage, for beginners and junior users.;Quick release design, easy to install and remove,;With these Propeller protectors, Avoid serious landing, Largely prevents the propeller from scratching people or objects.;When hit wall, tree or whatever, as long as the propellers rotate, your device will always keep balanced, It will stay in air instead of dropping down.;Fully protects the propellers and improves flight safety, thus your device will last longer.