New black plastic replacement blade for some vintage metal Vornado fan. This blade is a 10 1/4" and the hole in the back measures 5/16". Does not come with a set screw, just reuse the set screw you have, and the hole looks about 1/4. The hub of the fan blade is 2" thick. *Please measure your old blade as I don't refund if you find it won't fit your fan after the fact.*