These are very strong fan blades that I used to replace my porch fan. The fan was not intended for outdoor use and its blades were severely warped. These blades appear to be very strong and are made of a plastic-like material, so I don't think they wrap at all. I had to drill new holes because my fan holes were different. This was very easy by lining up the old blade with the new one and I used a drill to drill right through them. Overall they seem to work great and the quality and durability seems perfect for a porch fan. However, it took a very long time for them to arrive. So if you're looking for something quick, you might want to look elsewhere.
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