Higher version of the ergonomic saddle stool with backrest! 14-day try-out period! Used by thousands of happy customers! The Dunimed - High Ergonomic Saddle Stool with Backrest is the higher version of the Dunimed - Ergonomic Saddle Stool with Backrest. The high ergonomic saddle stool has been used with great success for years for all sorts of back complaints and disorders and it is being highly recommended by many physiotherapists to support the back when working or simply sitting at home.