Anbee 4 Colors Propellers Props Combo for Parrot Minidrones Rolling Spider, Airborne Cargo & Night Drone, Hydrofoil Drone, Mambo & Swing Drone (Colors: Blue / Red / White / Black)

I got the drone from a friend and one blade was loose. I tried making it tighter with clear Nail Varnish. It didn't work.Searching around took a while, but I finally found some blades labeled for my drone. However those would take weeks or months to get here. Searching on Amazon was weird and didn't help. I searched u31w and found some, then searched u31 and found a different listing that also mentioned u31w. Why didn't it show up with the first search?!I bought some other blades that were too small, then found these. They aren't as cheap as the ones labeled for the drone. If they didn't work I would order the ones from China that would take months. These fit nicely and I am up and flying.They feel slightly less durable than the originals, but not to cheap. They are also slightly different in that the top is flat, and the shaft hole doesn't go all the way through. You can see this in the second photo, the black is the original.If I remember, I will update how they are holding up in a few months.

Excellent quality and very good price

fitted perfectly and what a great increase in performance for the Ultrix -I will definitely buy again great vender fulfilled very fast

DO NOT BUY THESE THEY WILL BREAK YOUR DRONE ONCE YOU NEED TO UNINSTALL. I bought these to help my boy with his drone. One propeller had a nick and would no longer fly. After putting them on and trying to fly it with it not working, I tried to take them off. Be warned these propellers don't snap into place like the OEM ones. They also take so much force to get off I ripped one of the motors out completely. Now I have a 130$ paper weight. I sent these back for a refund the next day but that doesn't do me much good now that I need to buy a new Drone.

Have only used on set so far (blue) but they seem to be as good as what came with the "drone" (quad). A few crashes survived, can be bent back into place. Good deal, will buy another set when I need to since I'm not a terribly good pilot :)Mine came in little divided up bags with labels for "C" (clockwise) and "A" (anti clockwise). Just look at the ones you're replacing to see which one to replace it with.