1、Aluminum Alloy Rounded Corner Window: The window frame is made of high strength aluminum alloy with a black powder coated exterior, ensuring long lasting rust resistance even in outdoor environments. 2、Waterproof and UV Resistant: The entire frame of the window is sealed with a waterproof rubber ring to provide complete waterproof performance, keeping your camper cool in summer and warm in winter with drainage holes at the bottom. 3、4mm Thick Tinted Tempered Glass: The window is equipped with E‑mark certified tinted tempered glass, providing strength and safety while resisting UV rays and heat to prevent overheating inside the vehicle. 4、Vertical Lift Opening with Mesh Screen: The rounded corner window features a vertical lift opening with a mesh screen on the side, allowing fresh air to flow freely. 5、Easy Installation: The window with dimensions of 415x593mm and installation opening of 381x559mm / 15.24x22.36 inches is suitable for 35mm wall thickness, providing a solution for leaking, damaged, or unsatisfactory windows.