Using these pillow covers is super easy. Just unzip them and insert your pillows. You can use them indoors on your sofa, bed, or outdoor on your patio furniture. Since they're UV and water - resistant, they're great for outdoor use, but it's a good idea to bring them inside during heavy rain or extreme weather. For maintenance, you can spot - clean them with a mild detergent and a soft cloth. If they get really dirty, you can machine - wash them on a gentle cycle and air - dry. There's no need for any assembly, so you can start enjoying their stylish look right away.