This is basically useless. The straps that go through the back door are so flimsy they snap at the slightest wind. I added wooden blocks to keep them from falling out. However, the magnets aren't strong enough to keep the floor out anyway, so in the morning I went outside to the car with the cover tied to the top of the window. Maybe if there were no wind, but how often does a blizzard happen with no wind? It was cheap and not even worth the money.