Using the Deltana 18 - inch Surface Bolt is easy. First, find the right spot on your interior door for installation. Make sure the area is clean and dry. Attach the bolt according to the provided instructions. To use it, simply slide the rod into place to secure the door. When it comes to maintenance, wipe it down regularly with a soft cloth to keep it looking good. Avoid using harsh chemicals as they can damage the finish. If you notice any loose parts, tighten them up right away. With proper use and care, this surface bolt will serve you well for a long time.