Using this wedding arch cover is easy. Just slip the top and bottom pieces over your 7.5ft crescent moon metal wedding arch. It's a pullover design, so it should fit snugly. When using it, make sure the arch is clean and dry before putting on the cover. This will help it last longer. As for maintenance, when you're done using it, simply hand wash it in cold water with a mild detergent. Don't wring it out too hard. Let it air dry. This cover is durable and reusable, so take good care of it and you can use it for many events to come. Remember, this order only includes the cover, so you'll need your own arch stand and any other accessories you want to use.