Feature: 1. ALUMINUM ALLOY FRAME: The round corner windows are made of high strength aluminum alloy and coated with black powder, ensuring long lasting rust resistance and oxidation resistance. 2. WATERPROOF AND UV RESISTANT: Each frame is equipped with waterproof rubber seals to provide complete sealing and waterproof performance, ensuring your RV stays cool in summer and warm in winter with drainage holes to prevent rainwater accumulation. 3. 4mm COLORED TOUGHENED GLASS: The windows are made of colored tempered glass, providing sturdy and safe construction while resisting UV and heat to prevent interior overheating. 4. HORIZONTAL SLIDING: The windows feature a horizontal sliding mechanism with screens on the opening side, allowing fresh air to flow freely, suitable for storage compartments, living spaces, restrooms, or any location requiring windows for enhanced brightness or ventilation. 5. EASY INSTALLATION: With a small size of 340x643mm, suitable for 305x610mm / 12.2x24.4 inch mounting openings and 35mm wall thickness, providing a solution for leaky, damaged, or unsatisfactory windows. Specification: Item Type: RV Window Material: Aluminum Alloy+Tempered Glass Window Size: Approx. 340x643mm / 12.2x24.4in Installation Opening: Approx. 305x610mm / 12.2x24.4in Installation Thickness: Approx. 35mm / 1.37in Application: Protect privacy and ensure sufficient sunlight without heating up the interior of your RV. Fully sealed window can keep your camper cool in summer and warm in winter. Suitable for storage compartments, living spaces, lounges, or any location requiring windows. Can be used for RV trailers, camper van conversions, etc. Application: Suitable for camping vehicles, RV, engineering vehicles and other any need for windows. Package List: 1 x Window 1 x Fixed Clip Ring 16 x Screw Note: 1. Installation requires drilling holes, we highly recommend seeking assistance from professional engineers to ensure a perfect shopping experience. 2. Please be careful to avoid bumps and damage during disassembly and assembly. 3. Please make sure to confirm the correct size before purchasing.