Heavy Duty Boat Hinge: Made of high quality marine grade stainless steel. The hinges are easy to remove. You can easily install it anywhere on your lens. Stainless Steel Hinge: These hinges are made of high quality stainless steel. Made of corrosion-resistant embossed 316 stainless steel. It features corrosion resistance and durability in saltwater environments. You can use it for different purposes for free. Heavy Duty Butt Hinges: These shiny, mirror polished hinges are built to last and withstand the elements. The plain bearing operation makes these door hinges open and close smoothly and silently. Boat hardware hinges suitable for doors or windows of boats, yachts, lockers, cabinets, decks, tool boxes, doors and cupboards. < High Quality Corrosion Resistance: These hinges fit perfectly in your boat and fold back 270 degrees, protecting your hatch and can lay flat when opened. The surface is mirror polished and brushed nickel finished, which is not only durable but also has an