High qualtiy, the boat hatch is made from Non-Corrosion ABS plastic to resist the marine environment,added some silicone and completely waterproof. [Hinges:]The marine boat hatch's lid hinges 180 degrees and completely covers the mounting flange, for an attractive flush finish. Rubber seal ensures weatherproofing when mounted on vertical surfaces. Supplied with 2 strong recessed handles easy to install, pre-drilled countersunk fastening holes (screws not included). [Application]: Low profile hatch, designed for installation on internal or external flat surface; Rubber seal ensures weatherproofing when mounted on vertical surfaces [Protruded]Sturdy and the latches of the boat hatch doorclose firm and tight. Not flush. Smoothy Protrudes an inch or so from the surface where it's mounted. Color: Black Material: ABS Size:440x315MM Package Contents: 1 x Deck Hatch