Using these chairs is a breeze. Just sit down and enjoy the 360 - degree rotation to easily reach different directions. When it comes to installation, follow the provided instructions and use the included tools. It won't take you long to have them set up. For cleaning, you can use a mild detergent and a soft cloth to wipe the PU seat cushion and the PET+PU body. As for the oak legs, a simple dusting will keep them looking good. Remember, due to possible screen color differences, the actual product color might be a bit different from what you see online. With proper care, these chairs will serve you well for a long time.