The DoorPRO Doorstop is used as a temporary tool to prop open doors. Open the door all the way, placing the DoorPRO directly over the middle door hinge. Slide the DoorPRO down until it rests on the hinge-pin. Gently release the door until the sides of the DoorPRO rest between the hinge plates. Push the door open to remove the DoorPRO from the hinge.