It's a windmill kit at a good price. I can see a potential problem with rotor bearings, but price is low enough that it's worth a gamble. Good find Frank.
Learned a new thing today. I had never heard of a Grid-Tie Inverter before looking at that page, it explains how my two Honda generators connect together to allow to supplement the other.
I nice grid-tie inverter hooked to a battery while running a generator may be a great solution to keep from blowing generator circuits when a device such as an airconditioner first starts up.