Package Contents: You will receive an RV roof air conditioner gasket kit, including 1 picture frame gasket, 1 white foam leveling pad, and 1 black foam leveling pad. They help seal and secure roof air conditioning units on most RVs, and fit around seams, bumps, and irregularities. Waterproof and Insulated: Made from high-quality EVA foam material, weather-resistant and durable, it can withstand moisture, UV rays, and temperature changes, effectively sealing against water and providing insulation. The gasket forms an insulating layer between the air conditioner base and the RV roof, effectively improving energy efficiency and saving energy. The leveling pad can adjust the horizontal position of the air conditioner to a certain extent to ensure a stable and balanced installation of the air conditioner. Self-adhesive Design: The camper roof A/C gasket kit comes with back glue to make it adhere firmly to the interior of the RV air conditioner.