Title: Worthless
Review: I bought these to cover up several ceiling vents (the packaging claims they can handle ceiling, floor, and wall vents). The covers are barely magnetized. I tested them against refrigerator magnets, and the fridge magnets won by far. These covers do not stick to wall or ceiling vents. I don't think they do much better on floor vents than a heavy piece of paper would. Save your money.
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