Using the Deltana 4' x 4' x 1/4' Radius Hinge is easy. First, decide where you want to install it on your door and frame. Then, use the #12 x 1/2' machine screws to attach the hinge to the frame and the #12 x 1' wood screws to attach it to the door. Make sure the screws are tightened properly for a secure fit. When using, just open and close the door as usual, and the hinge will provide smooth operation. As for maintenance, you can wipe it with a dry cloth regularly to keep it clean. Avoid using harsh chemicals as they may damage the finish. If you notice any looseness in the screws over time, simply tighten them up. Also, keep the hinge away from excessive moisture to prevent rusting.