Using these dining chairs is easy. Just assemble them following the instructions provided. Once assembled, place them in your desired outdoor area, like your backyard or patio. They're perfect for enjoying meals or just relaxing in the sun. When it comes to maintenance, since they're made of rust - resistant aluminum, you don't have to worry too much about rust. But it's a good idea to clean them regularly with a mild soap and water solution. Avoid using abrasive cleaners as they may scratch the finish. Also, if there are strong winds or bad weather coming, it's best to store the chairs indoors to prevent any damage.