Description[Material] - The door hinge is made of iron, which is sturdy and durable, with the characteristics of corrosion resistance and wear resistance, not easy to bend and deform, and has a long service life.[Features] - The door hinge can be opened and closed silently, opening and closing are very smooth, reducing noise during use, and it adopts an offset screw hole design with good load-bearing capacity.[Easy to Install] - It is designed with multiple positioning screw holes, and this product comes with screws, saving you the trouble of finding suitable screws. You can easily install it with a screwdriver, which is stable and sturdy.[Wide Application] - These heavy duty door hinges are designed for indoor and outdoor buildings.