Frost King HD9 Heat and Air Deflector, Large, Heavy Duty, Clear Plastic with Magnetic hold or Screw-on hold for Central Forced Air Systems, Adjustable 10" to 16"

The product quality does not match the attached photos

so flimsy it just broke apart in the first hour. useless product.

It is unique in that it works for a/c air and for heat. I also love that it was versatile both in size adjustment and in ways to mount it. The magnetic mounting works great and is strong. It allows you to mount vertically (for double high vents) or horizontally to direct to air either up, down, left or right. You can also choose to mount it with the screws from the vent with ability to adjust the deflector up or down. The price is right and it is delivered quickly.

Works great. Nice size. Not super robust, but definitely not thin and flimsy. Adjustable lenght. I prevents curtain ends from blocking vents.

This deflects air as expected and expands as described. I bought it because of the slot/screw attachment so I'm not sure how strong the magnets are. I have had 117F air from my vents with no damage. This is meant for air vents, not a radiator as some people have tried and melted the plastic.

Nice, thick plastic at a more than reasonable price. The magnets work well too as long as you have a grill that the magnets can adhere to. I have a number of these throughout the house, move them around occasionally, and haven't yet broken one so thumbs up for this product!

As my review title says, these have great magnets and really stick on the vent. They are sturdy which is why I paid a little extra for these rather than some of the cheaper looking ones. The size adjustment works well also and I'd buy more of these in the future. Of course since it's 100 degrees out I haven't used it for heat yet and I did read other reviews of melting issues so that should be interesting when winter rolls around. Hopefully no issues.