[Stronger magnetism]: magnetic air -conditioning ventilation hole cover is made of super-strong coordinate rubber magnets and white PVC layers, with magnetic properties up to 1,000 Gauss. Even if the air -conditioning exit is under high-pressure or heating conditions, it will not affect the use of the cover of the register on the ceiling to that the ventilation mouth conductive board will not fall off. [Improve efficiency]: Just insert these ventilation mouths into the floor or ceiling vent. If you change the direction of the airflow in the hot summer, the air can be effectively allocated to improve efficiency. In the cold winter, even if there is no air conditioner, it can make your basement and home not too cold, save your money, and make your home more comfortable! [Multifunctional]: Our exhaust diversion board not only improves the efficiency of air conditioning, prevent dust and noise, but also prevent dogs and cat hair from blocked the ventilation of air conditioners, prevent dogs and cat's claws and nails from entering the ventilation port, and protect your pets. [Appropriate size]: The size of the exhaust draft board is 5.5x12 inches (about 14.9 x 30.4 cm), which is suitable for most standard metal air-conditioning exhaust ports and not suitable for wood or plastic exhaust ports. Please check the magnet before purchasing the magnet.EssenceYou can also cut it according to your needs, and even cut it into a refrigerator sticker, which is very convenient to use. [Easy to install and remove]: No extra tools are required, a powerful magnetic design, the floor storage ventilation hole cover is easy to install and remove.You can easily uninstall it so that underwater cleaning or wiping with cloth, saving time and energy. Type:Magnetic Venture Cover Colour:As Shown Material:rubber Package Contents: 1set * magnetic vent 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.