This is my first Revain review and I am writing this out of frustration with this product. I've had two Mavic Airs for two months now, when I saw these propellers I thought what a great way to build a drone. One of my propellers didn't last 20 days before it broke, I installed them on the drone very carefully and removed them after each use. I also use drone twice a week. Not a very big burden. I have to question the quality of the product as propeller failure after less than 10 uses isβ¦