article troubleshoots well

These helices are not in the same plastic as the original quality propellers.
Less flexible, break faster than the original propeller and especially noisier ;;;
After what's cool is that the different colors permettes to know or is the front and back of the drone)
Handy when the red LEDs that INDICATED behind the drone not It Works, which is mo cases.
In the end, it helps out well anyway ...