Never had a problem with the props itself, they all seem balanced and very easy to screw on to the motors. But I have had a few "tip overs" in the past when I landed my drone with the props still spinning, usually in slight windy conditions, uneven grass can do this also. Sometimes they come off with no damage at all, maybe some dirt that can be wiped off. Few times I have scuffed them. Any scratch, chip on these, - unless you really know what you're doing - you need to replace or else running a big risk of erratic flights. Thank goodness they are pretty cheap .

These are really hard to break!!! after four good crashes I haven't broken one yet. Still a good idea to have some extras around.

You just can't beat the price on the high quality blade. Bought an 2 extra sets and haven't needed to use them, drone flys perfect

The propellers are well made and fit perfectly. I will buy them again from Best Buy when the need arises.

They are top quality replacements propellers for the drone