Feature: 1. Robust Construction: Manufactured from heavy duty aluminum alloy with anodized surfaces polished to a smooth finish, ensuring long lasting anti corrosion, rust and oxidation resistance. 2. Transparent Glass: The glass part is made of 6 mm thick anthracite acrylic glass, with a rotating fixing handle and 316 stainless steel support rods, ensuring the overall robustness and durability of the sunroof. 3. Good Sealing: The frame has a waterproof rubber ring that provides complete sealing performance and shock absorption, and the gray glass filters out ultraviolet rays while ensuring light entering. 4. Multifunctional: The internal opening with double locking clasps allows for opening at angles between 0‑180 degrees, suitable for portlights, skylights, vent windows, storage compartments and more. 5. Easy Installation: Suitable for walls thickness of 5‑25mm, applicable for boat, yacht, ship, and RV, ideal for leaking, damaged, or unsatisfactory windows in your vessel or recreational vehicle. Specification: Item Type: Marine Portlight Window.Material: Aluminum alloy + Nylon + acrylic + rubberFront Size: 369x273mm/14.53x10.75in Mounting Cut Out Size: 347x251mm/ 13.7x9.9in Applicable Wall Thickness: 5-25mm/ 0.20-0.98in Inner Opening Angle: 0-180 degrees Application:Applicable for Boat, Yacht, Nautical, RV Package List: 1 x Marine Portlight Window1 x Fixing Frame Note: 1. The installation is difficult, it is recommended to find a professional engineer to assist in the installation to get the best shopping experience.2. Please pay attention to avoid collision when disassembling and assembling3. Please measure the size before purchasing to make sure it is what you need