Feature 1STURDY STRUCTURE: The aluminum alloy frame with black powder coating ensures long lasting rust resistance, providing a smooth touch. The steel tempered glass ensures strength and safety, while filtering UV rays. 2SEALED DESIGN: The waterproof rubber seal provides sealing and shock absorbing performance, ensuring complete sealing when the window is closed, to ensure a comfortable environment. 3MULTI FUNCTIONAL: Equipped with support rods and screens, the window can be used in 3 modes, full flying object stop screen, full safety curtain, or fully open, providing safety and guard from mosquitoes, noise, and heat. 4EASY TO OPERATE: With 2 handles for easy opening and locking, the window also comes with aluminum alloy support rods for stability. The support rods can be securely supported after several openings and closings. 5UNIVERSAL FIT: Suitable for campers, RVs, and construction vehicles, this window provides a solution for leaks, damages, and unsatisfactory window, making it ideal for various installation projects. Item Type: RV Window Material: Aluminum alloy + tempered glass +ABS+ rubber Size: Approx. 530x330mm / 20.86x13in Installation Opening Size: Approx. 500x300mm / 20x12in Installation Wall Thickness: 30mm / 1.2in Features: Black tempered glass filters UV rays, with aluminum alloy support rod and slide handle for easy locking or opening, equipped with screen and sunshade safety curtain inner frame to protect safety, prevent mosquitoes, sound, and heat Application: For RV, Camper, Mobile Home that requires window installation Package List 1 x Window 1 x Fixing Ring 1 x Sunshade Curtain 4 x Long Screws 10 x Short Screws Note 1. Installation may be difficult, it is recommended to seek professional engineers for assistance to ensure the best shopping experience.2. Please avoid collisions during disassembly and assembly. 3. Before purchase, please measure the size to ensure it meets your needs.