Feature:1. Robust Stainless Steel Frame: With marine grade stainless steel, this boat porthole window's entire frame and hinge is made to resist rust and last long. Its polished finish ensures a smooth touch, making it resilient to tough sea conditions.2. Protective Smoked Tempered Glass: Boat opening portlight boasts 6mm thick smoked tempered glass. This not only boosts its strength but also filters out harmful UV rays whilst allowing natural light to enter, brightening up your cabin's interior.3. 180 Deg Flexible Opening Design: This Boat Porthole Window features an inner opening design with a secure handle and a net as an added barrier. Its 0180 opening range supported by the solid stainless steel hinge offers unrestricted viewing angles of your journey.4. Universal Fit for a Variety of Spaces: This portlight hatch is versatile and can be installed anywhere required, such as storage cabins, living areas, lounges, bathrooms. It is a great addition to enhance indoor lighting or serve as a ventilation window.5. Easy Installation and Widely Applicable: The opening porthole can be installed on panels with a thickness of 2434mm. It is perfect for boats, yachts, ships, and RVs. It works great for your renovation and retrofit projects.Specification:Item Type: Boat Porthole WindowMaterial: Stainless steel + tempered glass + ABS + rubberSwitching Method: Internally open, includes stainless steel retaining clamp ringWindow Dimensions: Approx. 200mm / 7.87inInstallation Hole Size: Approx. 161mm / 6.34in (please allow a 2mm error for manual measurement)Suitable for Installation Thickness: Approx. 24-34mm / 0.94-1.34inApplicable to Boat, Yacht, Nautical, RV, it can be used for your ship, yacht, RV modification and installation projects, providing a solution for your water leakage, damage, and unsatisfactory windows.Package List:1 x Boat Porthole Window1 x Fixing FrameNote:The installation difficulty is slightly higher. If you are not a professional, we suggest seeking professional engineers to assist with installation for better shopping experience.