Universal compatibility: This RV roof vent is specifically designed for trailers, RVs, campers Advantages: Installing this RV mushroom roof can achieve optimal airflow direction control, with a weather structure that can withstand rainwater and extreme temperatures, ensuring durability throughout the year : This RV roof vent cover is made of plastic, which is shatterproof, waterproof, and wear-, providing long-lasting performance even in harsh outdoor Easy to Install: For DIY enthusiasts, replacing or installing a mushroom shaped vent cover is not a difficult task. You don't need additional tools, just twist off the original cover and our vent cover on Improve ventilation efficiency: The mushroom vent cover design of the RV roof helps natural wind to enter the car better and can effectively discharge the heat and moisture in the car. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Color: As shown Material: plastic Package Contents: 2 x RV Roof Mushroom Vent Cap 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.