Using the Deltana Radius Hinge is easy. First, make sure your door is clean and dry. Then, position the hinge on the door and the door frame where you want it. Use the #9 x 0.75 - inch wood screws to attach the hinge securely. For best results, check that the hinge is level before tightening the screws. When it comes to maintenance, wipe the hinge regularly with a dry cloth to keep it looking good. Avoid using harsh chemicals or abrasive materials as they can damage the finish. If the hinge starts to squeak, you can apply a little bit of lubricant to the moving parts. Keep an eye on the screws and tighten them if they become loose over time. This will ensure your hinge works smoothly and lasts a long time.