Using this chair is easy. Just place it on a flat surface, and the self - leveling glides will adjust to keep it stable. You can stack up to 12 chairs together to save space when not in use. When sitting, enjoy the comfort of the waterfall seat and the support of the ergonomic seat shell. For maintenance, wipe the seat shell with a damp cloth regularly. Avoid exposing the chair to extreme temperatures for a long time. Check the frame and glides periodically for any signs of wear or damage. If you notice any issues, contact the manufacturer for assistance. Remember, this chair is meant for normal use, so don't use it for any rough or heavy - duty activities.