Feature 1Oval Design: Marine portlight window is designed with oval eye shape to allow more light to enter the cabin and increase the brightness of the cabin. 2Sealed and Waterproof: Marine hatch porthole window is completely sealed and waterproof, with locking fixed handle, with insect screen and frame. 3Wide Angle Opening: Boat portlight hatch window can be opened at any angle from 0180 degree, allowing you to enjoy the scenery along the way. 4Wide Application: The oval opening boat portlight window can be used for ventilation window, suitable for small boats, yachts, ships and RVs. 5Durable Material: This oval opening portlight window is made of stainless steel, tempered glass and ABS materials, which have maximum durability. And it is anti aging, and impact resistant.Item Type:OvalOpeningPortlightWindowMaterial:Stainless steel, tempered glass, ABSWindowDimension: Approx. 470 x 210mm / 18.5 x 8.3inInstallation Cut Out Size: Approx. 405 x 150mm / 15.9 x 5.9inSuitable Thickness:1040mm / 0.39-1.57inApplication: Transparent window can increase cabin brightness, can be used to change the window, completely sealed waterproof, with locking fixed handleFitment:Applicable for Boat, Yacht, Ship, RV .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x OvalOpeningPortlightWindow1 x Fixed Outer FrameNoteYou are advised to seek professional engineers to assist in the installation.