Roof vent cover for Camper RV Trailer, Motorhome top vent lid black1、Efficient Ventilation: It can provide good ventilation effect, circulate air, effectively reduce indoor temperature and humidity, and provide a comfortable living environment. 2、Energy Saving: It can reduce the frequency and time of using air conditioning, thereby saving energy and reducing fuel consumption, which is beneficial for environmental protection and energy conservation. 3、Rain Bloking Design: With rainproof design, it can prevent rainwater from entering the car and maintain ventilation even in rainy conditions, without causing moisture inside the car. 4、Space Saving: Unlike traditional car windows, the roof ventilation cover of the RV adopts an upward opening design, which does not occupy indoor space and can better utilize limited space for layout and storage. 5、Durable: The roof ventilation cover is made of durable ABS and metal, which can resist strong indoor ultraviolet radiation and rainwater, is not easy to rust, and has a long service life.