Marine Window 800x400mm Rounded Slide Bidirectional Moving Sealed Waterproof High Light Transmission for Ships Yachts Without Fixed Frame Item Type: Marine WindowMaterial: Aluminum alloy + tempered glass + rubberWindow Dimensions: Approx. 845x445mm/33.27x17.52in (please allow 3mm error due to manual measurement)Installation Thickness: 30-35mm/1.18-1.38 (please allow 2mm error for glue fixing)Self Tapping Screw Mounting (not included): Approx. 6mm/0.24in mounting aperture Cut Out Size: Approx. 800x400mm/31.50x15.75in Application: Ships, yacht rooms and opaque and ventilated places, install windows on the yacht to increase light transmission, introduce a wider viewing angle, enjoy the beautiful scenery of the ocean without moving to the deck, open the window to feel the refreshing sea breeze!Suitable for ships, yachts and other locations that require windows