1Heavy Frame: The fixed window frame is made of high strength aluminum alloy with a black powder coating for excellent corrosion and oxidation resistance, ensuring long lasting durability outdoors. 2Good Sealing Performance: The whole frame ring of the round corner window of the Rv is equipped with waterproof rubber rings to ensure complete sealing and water resistance. 3Uv Resistant Tempered Glass: The 4mm black tempered glass ensures strong and safe windows. Colored glass resists Uv rays and heat, preventing car interior overheating. 4Applicable Location: Fixed window can be applied to the storage compartment, the door, the top of the car, the living room, the lounge or any location that needs a window. 5Widely Used: This fixed window is suitable for camper trailer Rv mobile home construction truck, no exposed external fasteners, so that the external lines of the window more smooth.