Bi-directional opening function- The hinge can be used to open doors. You can freely open the door in both directions and the door always returns to its original position. Swing or two-way hinges can provide secure control of closing large or small swing doors or hinged doors. Minimize Noise- You can adjust the elasticity with the supplied Allen key. Each hinge has 4 holes to ensure a tight connection. With swing door hinges, there is no squeaking when the door is opened or closed. So rest assured. Exquisite spring hinges can add beauty to your door. Exquisite craftsmanship-The hinge is made of high quality stainless steel, it is corrosion resistant and not easy to rust and can be used for a long time. The load capacity of each door hinge is 8 kg, which is not easy to break and deform. The hinge surface is polished, smooth and burr-free with beautiful appearance. Easy to install- Our package includes two 3 inch swing door hinges, one allen key, long self-tapping screws and locking pins. Installation is very simple. First, determine the position of the swing door hinges, align them and mark them. Then install the accessories accordingly. Wide range of applications- The door can be opened freely in either direction. This means that the door can be pushed from both sides of the door. This type of hinge can be used in counters, workshops, houses, apartments, restaurants, hospitals and other places. They are also used in aircraft doors or trucks.