EFT Hub Rings are precision parts for installing and balancing propellers on drone motors for better performance and efficiency in flight.
This is EFT Arm Waterproof Ring shaped/EP/4pcs Compatible with all Drone Frames, a set of four waterproof rings designed to be compatible with all drone frames. These rings likely serve to provide waterproofing or protection for components, especially around 40mm-54mm shaped areas of the drone’s arms, ensuring added resilience against moisture or environmental elements.
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