Boat Porthole Window Heavy Duty Aluminum Alloy Waterproof Sealed Push Out Deck Porthole Skylights Escape Window for Marine Yacht RV 1ROBUST DESIGN: The window is crafted from heavy duty aluminum alloy, offering a smooth, anodized and polished surface. This ensures excellent damage resistance and durability, making it ideal even in harsh marine or outdoor environments. 2HIGH GRADE GLASS: This porthole uses 6mm thick, smoke gray tempered glass. Not only does it provide robustness and safety, but it also filters harmful UV rays while allowing ample light to enter the cabin, enhancing its brightness. 3PUSH AND WATERPROOF: The push out opening method allows for easy ventilation and the waterproof seal keeps your cabin dry even in rainy weather. Enjoy a comfortable and dry boating experience. 4MAXIMUM OPENING ANGLE: This skylight can be fully opened up to 90 degrees, providing ample air circulation and access to the outdoors. Experience the freedom of fresh air and natural light. 5UPGRADED PERFORMANCE: The skylight comes with a durable stainless steel support rod and locking handle, ensuring a secure and stable opening and closing mechanism. Can be used as a replacement for boats, yachts, and RVs. Upgrade your vehicle with ease and convenience.