Upgrade your RV or yacht's ventilation system with our round adjustable air vent covers. These vents are designed to offer precise airflow control, allowing you to adjust the air circulation to your liking. The easy installation process means you can set them up quickly and without hassle. Made of sturdy materials, these vent covers are built to withstand the test of time. Features -Color:Black -Material:ABS -Size:11.50X11.50X2.00cm/4.52X4.52X0.79in -Adjustable: These adjustable vents allow you to control the airflow with precision, creating a comfortable atmosphere in any setting -Practical: Ideal for use in rvs, marine vessels, and other air-conditioned environments, ensuring optimal air distribution -Easy to install: The installation process is straightforward and can be completed easily without needing professional help -Sturdy: Constructed from robust ABS materials, these vents promise performance and reliability -Precise: Adopts precision production to the stable characteristics and high reliability Package list: 6 vent covers