Feature: 1. Parameter: The window size is 470x210mm, the installation cut out size is 405x150mm, and the installation thickness is 10‑40mm. 2. Oval Window: The oval shape design allows more light to enter the cabin, increases the brightness of the cabin, and can be used for ventilation windows. 3. Stronger: Sturdy ABS, stainless steel, molded design and thick tempered glass for maximum durability. With anti aging, impact and corrosion resistant features. 4. Unique Design: Fully sealed and waterproof, equipped with locking fixing handles, insect repellent mesh and sturdy outer frame, effectively prevent rainwater from entering. 5. Opening Angle: Square design, with switch lock handle and support rod, 0‑180 degrees adjusted, convenient to enjoy the scenery along the way. Specification: Item Type: Oval Opening Portlight WindowMaterial: Stainless steel + tempered glass + ABS .Window Dimensions: Approx. 470x210mm/18.50x8.27in Installation Cut Out Size: Approx. 405x150mm/15.94x5.91in Suitable Thickness: 10‑40mm/0.39-1.57inApplication: Applicable for Boat, Yacht, Ship, RVInstallation Instructions: The window is inward opening, the fixed frame is installed outside the cabin, and the glass surface is the inside surface of the cabin Package List: 1 x Oval Opening Portlight Window1 x Frame Note: Installation is slightly more difficult, it is recommended to find a professional engineer to assist in installation