Using these pillow covers is a breeze. Simply unzip the cover and slide in your pillow insert. You can use them indoors on your sofa, bed, or outdoor furniture like patio chairs. Since they're UV and water - resistant, they're great for outdoor settings, but it's still a good idea to bring them inside during heavy rain or extreme weather. For maintenance, spot - clean the covers with a mild detergent and a soft cloth. Avoid using harsh chemicals as they might damage the fabric. There's no need to assemble these covers, so you can start enjoying them right away.