Unit Weight (g):
These props are not very solid, they flex alot during flight. Haven't tested enough props to know what this means for flight characteristics but on my ZMR250 I can crash with these props 10plus times without snapping one. Can even bend them back into place.Awesome props, cheap and durable.Props are undoubtedly a personal choice issue in how they feel given many other variables. I had been flying a really durable 5045 prop, but I wanted something less aggressive and easier to spin. For me, these props don't work. They are definitely lighter and work exactly as they should, but they are so thin they are constantly bending and warping coming in contact with my arm mounted ESC's. I've had several other props on the 5" build, and these are the only props that constantly nick at my ESC wiring. I'm sticking with a more durable prop, but these may work for you and at their price I'd give them a chance if you need a 5040 tri-prop with low spin weight.