Premium Quality: These hinges are made of high quality zinc alloy, with good corrosion resistance, not easy to rust and deform, also strong and durable. Safety assurance: The surface of the movable door hinge is processed by wire drawing, and the surface is smooth without burrs, to ensure the safety of your hands. Strong load-bearing capacity: Load-bearing capacity up to 40 kg, it is suitable for doors weighing no more than 40 kg, the maximum door opening angle is 90 degrees, the sturdy structure ensures stability in different environments. Easy to install: The upper and lower parts of the door hinge can be separated. First install the lower part of the door hinge on one side with screws, then connect the upper part and the lower partwith complementary parts and attach the upper part. section on the other side with screws. Wide Application: It is not only suitable for wooden doors or metal doors, but also can be used for transformer boxes, sheds, windows, fences, wooden and metal boxes and d other projects. Details: 1. The maximum opening angle is 90 degrees, which can prevent the door from turning left and right. 2. It has strong bearing capacity and stable rotation, which ensures that it is quiet and quiet when opening the door after installation. 3. Simple and beautiful appearance, suitable for a variety of decoration styles. Meet your daily needs and make your home more delicate. 4. The package contains the parts needed for installation to ensure the process is quick and convenient, and can be completed in minutes.