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. Item Type: Marine Portlight Window Material: Aluminum alloy + Nylon + acrylic + rubber Front 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 1 x Marine Portlight Window 1 x Fixing Frame