Using these covers is easy. Simply pull them over your half-moon wedding arch Chiara backdrop stand. They are designed to fit snugly, so you don't have to worry about them slipping off. When using them for events, make sure the stands are properly set up before putting on the covers. As for maintenance, you can hand wash them in cold water with a mild detergent. Don't bleach them, and let them air dry. This will help keep the matte purple color looking great and the spandex in good condition for a long time. Remember, this order only includes the covers, so you'll need to have your own stands and other accessories. These covers are very versatile and can be used for many different occasions like weddings, parties, and home decor.