This air vent is made of nylon material, durable and beautiful. It is very convenient to clean and maintain. The vent cover makes fresh air into your RV car, protects your environment and your life, give a better driving life to you. Suitable for RV exhaust and ventilation use. Features -Color: White. -Material: Nylon. -Size: About 12.70X12.70X5.00cm/4.99X4.99X1.97in. - The ventilation grille is made of nylon, durable, resistant to corrosion, rust and oxidation. - workmanship and reliable materials ensure a and perfect details. - This item can effectively replace the old or airflow vent cover of boat. - The scientific reasonable design brings a good ventilation effect. Easy to install and disassemble. - Widely used in marine boat ventilation and heat dissipation, and not easy to be blocked. Package list: 1 x vent cover