High Quality: This hinge is made of high-quality steel, sturdy and durable, not easy to rust or deform, and has strong load-bearing capacity and long service life. Unique Design: The hinge is equipped with a strong spring, which is very flexible and has strong load-bearing capacity. It allows the hinge to move up and down very smoothly and stably without making any noise. 80° Opening Angle: This hinge can open the cabinet door to an 80-degree opening, which is convenient for organizing and taking out items. Convenient and Practical: This hinge is easy to install. You can fix it with screws and it is very easy to use. And the cabinet door can be opened to an 80-degree angle, which is convenient for organizing or taking out items. Wide Application: Suitable for folding beds, folding sofas, lift doors, wardrobe doors, etc. And there is a pair of hinges in this package, one for the left and one for the right.