Ballo: A Stool for Active Sitting

Inspired by the exercise ball, Don Chadwick designed Ballo, for Humanscale, to replace your old boring office chair. Ballo is a multipurpose stool that keeps you moving by encouraging low intensity physical activity. Similar to the exercise ball in that way, because there’s a rounded bottom, which means you must use your legs and core to stay upright.

Looks like something for kids or something that you’d find at Google headquarters.