Bonsicoky 4 Inch Round Boat Hatch, Marine Inspection Hatch, White Plastic Deck Plate with Non-Slip Cover, 5.5 x 5.5 Inch Outer Diameter, Waterproof Access Hatch for Boats, Yachts & RVs

["Lasting marine grade construction: This round boat hatch is crafted from quality plastic with a clean white finish. The material is UV-resistant and built to withstand harsh marine environments, ensuring long-lasting performance on your vessel","Ideal 4 inch size: Features an inner diameter of 4.1 inches and an outer diameter of 5.5 inches, with a height of 0.9 inches. This compact size is ideal for inspection access, storage compartments, and cable passages on boats, yachts, and RVs","Non slip safety cover: The detachable cover features a textured non-slip surface that provides secure footing even in wet conditions. Essential for deck installations where safety is paramount","Easy installation with included screws: Pre-drilled countersunk holes allow for quick, secure mounting on any flat surface. Mounting screws are included, so you have everything needed for a hassle-free installation right out of the package","Watertight seal protection: Includes a flexible rubber O-ring that creates a weather-tight seal when the cover is closed. Prevents water, moisture, and debris from entering your boat's interior spaces, protecting valuable equipment and storage areas"]