AmzGod was established in 2015 and has been specializing in door hardware for 10+ years. With professional manufacturing lines and robust quality control system. We can provide high-quality products and a satisfied shopping experience. Our door hinge is an ideal decorative accessory, suitable for a wide range of modern and contemporary residential and commercial interior doors. Product Features: Damping Oil Feature: The hinge central shaft includes the damping oil feature which is built to reduce metal-to-metal friction and provide quiet open-door and close-door experiences. When you remove the hinge pin with the damping oil function, the resistance is increased. The pin is removable but with some difficulties due to the sticky lubricant we added around the pin. Plain-bearing Construction: Door hinges with five-mortise which provide stability and safe, our door hinge can be rotated to 270 degrees, and the bearing adopts a seamless design that can make the door open and close smoothly. Application: The door hinges are suitable for interior doors such as living rooms, kitchens, bathrooms, study rooms, apartments, hotels, offices, hospitals, companies, shops, factories, classrooms, drawers, dressers, wardrobes and cupboards. But also are suitable for all kinds of outdoor buildings such as garages, dog houses, cowsheds and so on. Durable Finish: We can provide different finishes for hinges, such as polished brass, black matte, brushed nickel, and satin chrome. With waterproof and rust-proof technology, it can meet the needs of different home decoration styles and life scenes. Upgrade Screws Length: The nuts size remains unchanged, and each screw is lengthened. The long screws will come in handy when the existing hardware is replaced by the same hole. Product Specification Finish: Satin Brass Material:Iron Dimension: 3-1/2 x 3-1/2 Inch Corners: 5/8 Inch Radius