The cover is made of thick strong magnetism material which can grip your air vent securely in place. With 1mm thickened stronger magnet while general cover is 0.6mm, the magnetic air vent cover sticks to your floor/ceiling/wall vents tightly. The cover could prevent dust, pet hair, and dirt getting into your vents, perfect for when you carry out a renovation and want to protect your vents, stick it to cast-iron or steel vent for a tight, solid grip.
