Super useful. Hydraulics work great. Seat height ranges from 24 inches up to 31 inches. Features 5 smooth rolling castors and foot rest. Compact for smaller spaces. Although this is an adult office chair, it proved to be excellent as a child’s dining chair. It is very stable and can be raised to any convenient height, fits easily at the table, and has a foot rest. Also excellent at full height for brushing and braiding hair. Smoke free home near Jubilee Hospital.  See less