1、Robust Frame: The frame is made of high strength aluminum alloy with a black powder coating that provides unparalleled oxidation resistance, ensuring long lasting performance even in harsh outdoor environments. 2、Leak Prevention: The entire frame has a rubber ring to ensure a perfect seal to keep your camper cool in the summer and warm in the winter, and there are drain holes below the frame to ensure stormwater runoff. 3、Tempered Tinted Glass: 4mm thick black tempered glass (E Mark certified) provides sturdiness and security for windows. Tinted glass is resistant to UV rays and heat, preventing the cabin from overheating. 4、Application: Rounded windows are suitable for any position where windows need to be opened, such as campers, trailers, RVs, mobile homes, construction vehicles, etc. 5、Multipurpose: The window can be installed in storage compartments, doors, roof sections, living spaces, lounges, or any other position where a window is needed, enhancing interior brightness.