Furniture visionaries izzy+ have introduced Dotti, the latest addition to their ever growing line of ergonomic, space-saving seating. Dotti is the result of interesting research izzy+ conducted that follows the concept that moving bodies and engaged cores lead to more active and engaged minds. With Dotti, you can effectively pivot 360 degrees on the contoured rubber base with its intuitive rocking 'mechanism.' This allows you to lean, perch, and tilt in ways that activate your core, "giving your muscles something to do while your mind gets to work." Available in five different heights (13"-21") to accommodate children and adults alike, and also in many different fabrics and colors, Dotti is sure to facilitate healthy workplace motion that will inspire increased levels of aptitude.
references: http://www.izzyplus.com/media/916433/dotti_brosheet_041116_print.pdf