1、Aluminum Alloy Frame: The frame is made of high strength aluminum alloy, with a black powder coated exterior that ensures long lasting corrosion and oxidation prevention. 2、Good Sealing: The entire frame of the window is equipped with a waterproof seal to ensure complete sealability and waterproof performance. 3、UV Block: Features 4mm thick black tempered glass, ensuring overall sturdiness and safety, and effectively resists UV rays and prevents overheating inside the vehicle. 4、Multifunctional: The fixed round corner window can be applied to storage compartments, doors, rooftops, living spaces, lounges, or any location that requires a window, enhancing interior brightness. 5、Wide Application: Suitable for trailer campers, RVs, construction vehicles, etc., can be used for your camping trailer modification and installation project.