I work for a company that distributes stuff and that is one of the things we do. You can get them at Crappy Tire.....now as far as how good are they...well......they don't last more than 2-3 yrs, they are cheaply made, they get covered with snow and yes you can't see out of it, they are over priced usually, flimsy, and plainly put a waste of $....on the other hand for $75 not a bad deal to giver a try if you were thinking about it at all. I think you have already made up your mind anyway but good luck.