SEAL360 Strong Magnetic Vent Covers, Pocketed Design, 3.5" x 14" (White, 3-Pack) for Floor, Wall, or Ceiling Vents and Air Registers, RV, Home HVAC and AC Vents, Vent Not Included

These are the best magnetic vent covers I have ever used! Good quality and will last a very long time, can also use them vertically as the magnet is excellent with thick edges, not flat and doesn't "blow" off like some thin flat ones.

These perfect for sealing off those vents when needed👍🏻

Fantastic product. Works well on ceilings. Holds very tight and quiets the hissing from the closed vent. I would recommend using a drill make a hole for the screws in the vent, instead of using scissors. It looks a lot neater. cutting the slit (as shown in the directions) for the vent lever was perfect for my vents. I love these things

These are a very big improvement over the thin, single layer version, so well worth the price difference. The recessed area in the middle allows room for the vent control, so it make a strong seal all the way around. Have placed them on vents in the ceiling, and even upside down they stay in place. Highly recommend.

Perfect cover for 4 vents.

Nice vent cover. I secure mine with a small piece of duct tape on the top because the magnetic seal is not snug. This works just fine. Inside the house on the floor registers they are perfect.

pretty sturdy

sturdy, stays put.

These work really really well! Much better than the simple flat ones

Did not seem to make a difference in the rooms I put them in. The temperature remained the same even with the vents closed and covered with the magnets. They do come as pictured and covered the vent as described.