Features: Designed for marine durability, this Boat Inspection Hatches Cover features a leakproof design with rubber and double seal, ensuring secure protection for boats, yachts, and more. The reinforced anti slip surfaces and screw in installation allow safe horizontal/vertical placement, while the wear resistant plastic construction resists corrosion and wear. The product with good airtightness, which can effectively prevent rainwater and sea water from penetrating into the cabin, and protect the equipment and facilities in the cabin from moisture and moisture. Install effortlessly on decks, engine compartments, or storage areas to create watertight entry points for wiring, plumbing, or equipment checks. Pre drilled holes and detachable cover plates simplifies direct replacement, delivering high compatibility with existing marine or motorhome systems. Specifications: Material:Nylon Color & Size:4inch (Black,White),5inch(Black),6inch (Black,White) Package Includes: 1Piece Boat Hatches note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.