Using this Deltana 1 - 1/8 inch Shutter Bar/Door Latch is easy. Just attach it to the two shutter doors where you want them to be latched. Make sure to align the parts properly so that it can lock securely. When it comes to maintenance, use a soft, dry cloth to clean it regularly. Avoid using harsh chemicals as they might damage the finish. If you notice any dirt or grime, you can gently wipe it off with a mild soap and water solution, then dry it thoroughly. Also, check the screws periodically to make sure they are tight. That way, your latch will keep working well and looking great for a long time.