Our robust and stylish Round Shape Porthole, a perfect addition to your Boat, Yacht, RV, or any industry vehicle. This porthole combines aesthetic appeal with high functionality, making it an essential accessory for various applications. Durable Design: Material: Crafted with strong ABS molded design, this porthole is built to reduce aging. Glass: 4mm thick tempered glass ensures strength and clarity. Accessories: Comes with cast and polished 316 stainless steel accessories, and synthetic fittings. Seals: Equipped with durable, water-tight rubber seals for performance. Additional Features: Black Tempered Glass: This porthole features black tempered glass for enhanced aesthetic and functional qualities. Custom Seal: A custom seal is included for superior performance. Functional Design: The two fittings can be loosened, allowing the porthole to swing open easily. Installation: Designed for hassle-free installation, it comes with pre-drilled countersunk fastening holes (note: screws are not included). Dimensions: Overall Diameter: 8.5 inches. Diameter Opening with Open Window: 5 3/4 inches. Glass Window Diameter: 5 inches. Elevate the look and functionality of your space with this exquisite Round Shape Porthole, a product blending durability, style, and versatility for an array of creative installations.