DIY The Size You Want: with 2pcs 400x300mm floor vent cover mesh and 8pcs 400mm magnetic strips separately, you can flexibly DIY various sizes of cover according to your needs, and you no longer have to worry about buying the wrong size anymore. Material:Made from quality PVC material, with magnetic frame ,reliable and sturdy to use, not easy to break ,can be used for long time. Magnetic Vent Cover Mesh: No nails required, no extra tape required. The magnetic vent screen is not only convenient to install, but also easy to remove, you can remove the magnetic vent cover for cleaning at any time. Widely Usage:These floor register cover can catch small items that may fall into the vents, also can help you to keep out of small moths,spiders or other unwanted insects, while good ventilation. What You Get: 2pcs 400x300mm screen mesh, 8pcs 400mm magnetic strips color: Black Material: PVC Package Contents: 2 pieces 400x300mm vent screens 8 pieces of 400mm magnetic strips Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.