Using these backdrop covers is easy. Just slip them over the 6.5ft or 8ft stands of your half - crescent moon wedding arch. They're designed to fit snugly, so they'll stay in place during your event. Remember, the order only includes the covers, so you'll need to have your own stands. For maintenance, simply hand - wash the spandex covers in cold water and let them air dry. Avoid using bleach or harsh detergents as they can damage the material. Store them in a cool, dry place when not in use to keep them in good condition.