Magnetic material: The vent cover is made of thick rubber magnetic material, with exquisite workmanship, stable performance, flexibility, not easy to break, perfect coverage, no air Space, and can firmly fix the exhaust port. The exhaust cover has strong magnetism and is not easy to move after installation. Even on ceiling vents with large airflow, it is not easy to move or fall off from the vent, and has strong stability. The magnetic vent cover fits most standard air conditioners. Or you can crop it as needed. You just need to peel off the white film of the AC vent cover and to the vent area. Our magnetic ceiling vent covers can completely block the flow of hot and cold air in a specific room or area. You can distribute airflow efficiently, reducing energy costs by redirecting air. is a simple and affordable solution. Not only suitable for indoor air conditioners, but also for cars, RVs, etc. Also helps annoying noise from apartment buildings or bad odors from smoking or cooking. Material: PVC+rubber colour: Black+white Package Contents: 2pcs x 30.5 x 14 x 0.16cm magnetic ventilation covers 2pcs x 39.5 x 20.5 x 0.16cm magnetic ventilation covers 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.