Using this stool is easy. Just sit on it and use the gas-pump to adjust the height to your comfort level. When doing manicures, pedicures, or facial treatments, make sure you're sitting in a stable position. For cleaning, use a mild soap and a soft cloth to wipe the surface. Avoid using abrasive cleaners as they can damage the plastic or aluminum base. Keep the stool in a dry place to prevent rusting, especially if you have the aluminum base. If you notice any issues with the structure, gaslift, or foam within the warranty period, contact our customer service for assistance.