Humanscale Freedom Pony Saddle Seat. It's simply one of the most comfortable and healthy ways to sit if leaning back on a backrest is not an option. Equally at home in a residence, office, lab or industrial setting, the Pony Saddle is ideal for short duration computer work, clinical applications and guest seating - or even for getting your feet off the ground by using it as an ottoman. How is Humanscale's Freedom Pony Saddle different from other stools?