Review on 🧲 MAG MATE MRS030X2437X001: Reliable and Versatile Flexible Magnet Sheets for Various Applications by Tim Harrington

This rating is for vent cover use only. I cannot speak for any other type of application. The circulation in my office is terrible. In some rooms it is very cold, in others so hot that it is almost unbearable. I bought a couple of these magnets to block some of the vents and try to get the system to work a little better. The vents I am trying to close are on the ceiling and while these magnets are strong enough to block the air, they are quite heavy and the magnet is not strong enough to hold the covers in place . without sticking them with tape or attaching additional stronger magnets. The magnet sticks when you hold it in your hand, but as soon as you let go it falls off. I solved this problem by simply attaching it to the vent frame with clear tape. So if you're like me and you're using them to block a vent, then yes, they work great for blocking airflow, and if you're using them on the floor or maybe a wall, you probably don't need them -- do you Help. But if you try to use them on a ceiling fan, just know that you'll have to do some manipulation to keep them in place.