1、Perfect for Inspection: Great for access to various onboard storage areas and examination of fuel lines, electrical, indicator cables, control devices and engine maintenance in marine yacht ships. 2、Premium Material: Made of ABS material, which is aging resistant, corrosion resistant, and UV resistant, adding resistance to sunlight, water, and salt. 3、Versatile Mounting: The hatch cover separates from the chassis, with a surface that allows for both horizontal and vertical mounting, making it easy to install. 4、Sturdy Design: The round deck cover lid features a solid design with pre embedded head holes (screws not included) for enhanced durability and long lasting use. 5、Water Tight Seal: Tighten the rubber O ring to form a tight seal to prevent water leakage, keeping the inner parts of your ship safe from water damage.