Using these pillow covers is a breeze. Just unzip the cover and insert your pillow insert or fill if it's not already included. You can place them on your sofa, chair, or bed indoors, or outside on a patio or deck. When it comes to cleaning, spot clean them with a mild detergent and a soft cloth. Avoid using harsh chemicals as they may damage the UV - protected polyester material. Since they are water - resistant, a little rain won't harm them, but it's best to bring them inside during heavy downpours. There's no need to assemble anything, so you can start using them right away. Just make sure to select the right color, size, and other options on the page to get the exact product you want.