All of the 3 blade props I have bought off ebay for my drones have been great, whether they are 5 through to 10 inch have all held up well until I hit a tree. I have some 10 inch ones on order for the airboat I am about to start building with a 2208 brushless motor from an old drone. The Swamp Dawgs look great and from the videos I have seen they run well.