Strong Magnetic Vent Covers for Ceiling and Wall Vents – 2 Pack 8”x15” Includes 8 Additional Magnets for Guaranteed Holding Strength Can Be Cut Down to Smaller Sizes (Not for Aluminum/Plastic Vents)

I had to cover half of a wide wall vent. I used one of the vinyl sheets that came in this kit (it has two) and all of the magnets. I think it would have stayed up with just four magnets. However, a little air still leaks out of the parts that don't have magnets on them. I don't think this is a huge problem but you should be aware of it, especially if you are thinking this product is going to completely seal off the vent. In theory, it can. You just need more magnets.I used all eight magnets on the one sheet and I did achieve almost a complete seal. Again, I think the sheet would have stayed up with just four magnets. It doesn't require you to use eight as I did. I had no use for the other four so I figured why not improve the seal.FYI: The vinyl sheets are white on one wide, dark brown (black?) on the other side. That's nice because I was putting this up in a room with dark walls. Unfortunately, the magnets are white but what are you gonna do? I guess I could spray paint them.I assume the high price is because magnets aren't cheap.I'm satisfied. Problem solved.

Awesome product!!! The guy that invented this stuff deserves a medal of some sort. The product arrived in less than a week, it's easy to trim, fit perfectly over the vent that terrorized my scalp/well-being in my new office, and has 8 smaller magnets to boot? Man, I'm grateful that something like this exists.I had to search for it on the job with super cold fingers. By the time I successfully typed 'AC Vent Cover' on Amazon, I had already tried 3-4 times because my fingers were so cold and numb! LOL! It's great that the listing recommends for potential purchasers to test their vent to make sure it's metal. I did so, mine was magnetic, I pressed the purchase button with my cold pointer/ordering finger ASAP! Of course, as always, I made my judgement based on reviews I looked at. I always make sure to look at the 1-star reviews first to see what their gripe was, then I review the 2-stars if necessary.This things is well worth it... functionality, price, quantity, everything. TWO of the large magnets? I was super excited about that. So, after trying multiple positions for the large magnet, I drew a line where it needed to be cut (cut VERY EASILY) and stuck it on the vent. It fell once, but it was due to my own negligence while positioning it. I could only laugh because I remember reading a review where someone states it fell on their head (or a loved ones head) and that it's a dangerous product, or an accident waiting to happen. Not so. The larger magnet stays; the smaller magnets solidifies it's staying. I only used 3 of the smaller magnets. I would've attached an image, but I'm not at work right now. =} Either way, I have a large wall vent and the air comes straight down at a 45 degree angle... right on my dome. And that air is super forceful! I mean it! One would think there's an in-door blizzard afoot. So, I cut the large magnet and covered the venting to the far left (a little less than half of the vent), and used three smaller magnets at 6 o'clock, 9 o'clock and 12 o'clock. Even without the smaller magnets, it stays! But the air was blowing so hard, it came loose from my hands a few times. After all the tests were completed, its not even come close to loosening or falling. To top it all off [literally ;)], I have one full vent cover+>1/2 remaining along with 5 magnets. Super! I'm thrilled with this product, and I believe you will be as well.**EDITS MADE** I'VE NOW ADDED TWO PICTURES!!! YAAAAY!!!! =D

Just remodeled our basement. It is always extremes in temperatures depending on if air or heat is running. We close our ceiling registers but find this does not seem to help. Researched and thought we would try these that had the additional magnets. You want these! We can now enjoy our new basement and not freeze this summer! Great Idea, Reasonable Price and Awesome Product!

Love this product so much I ordered a second to get the other vents. Originally purchased for the office that was too cold in the summer as all the AC pumped into that room, the addition of the extra strong magnets made this one hold up to the force and make the rest of the house cooler. Just make sure your vents are magnetic (test a fridge magnet before purchasing). The flexible material is lightly magnetic as well, but when the AC is going it would blow free if a proper seal is created. Hence the great addition of the stronger magnets. The material can be cut with scissors allowing you to cut notches for screw and diversion levers, and there is enough in this for 2 vents.

I wouldn’t recommend this product. The part that covers the vent is not magnetic. The magnets that are added to hold the panel to the vent aren’t very large and are mostly a piece hollow metal with a small magnet in the middle. Just buy some plastic panel material and nice, strong magnets and make your own.

We love this product. The air conditioning in our office is so hard to regulate. On one end of the building our office personnel are always complaining about being hot, and on the other end of the building our office personnel are always complaining that they are freezing. We purchased covers from Walmart last year and as soon as the air conditioning kicked on they fell off the vents. We ended up having to secure them with tape that looked very tacky in a business office. The magnetization of these covers themselves are very secure and really didn't necessarily need additional magnets, but they for sure were extra secure once we added the additional magnets. Several of these vents are right over office personnel desks, so knowing that they will not blow off and land on someone's head is a complete bonus. I would highly recommend this product.

So the actual covers, meh. But the magnets that come with it, AWESOME! They do the trick with keeping the cover on a vent that’s on the ceiling. I gave it 4 stars instead of 5 because of the price, still very worth it as there is nothing else that works, so it was nice to have but it would be even more worth it, if I could buy just the magnets separate. Just a bit over priced in my opinion.