This air vent cover is durable and resistant to wear and tear. It is perfect for use in various vehicles, including RVs, trucks, and marine vessels. The vent cover ensures optimal airflow, preventing the buildup of stale air and maintaining a fresh atmosphere inside your vehicle. Features -Hole diameter:73mm -Color:Black -Material:Plastic -Size:10.00X10.00X6.00cm/3.93X3.93X2.36in -Efficient heating: delivers highefficiency airflow to quickly warm up your vehicle's interior, providing a cozy environment during cold weather -Spacesaving design: the square air vent design is compact and does not occupy much space, making it easy to install and convenient for any vehicle -Versatile functionality: offers heating, warm air, and air conditioning functions, making it suitable for use in different seasons and weather conditions - durability: constructed with durable materials that ensure reliability and longevity, minimizing maintenance and replacement -Universal application: compatible with a wide range of vehicles, from personal cars to commercial trucks, ensuring a comfortable driving experience in any vehicle Package list: 3 air conditioning outlet