Humanscale Ballo StoolThe Humanscale Ballo is designer Don Chadwicks vision of what a multipurpose stool should befun, engaging and perfect for short term, active sitting in the home or office. With a compact central column and lightweight air filled domes, Ballo is an imaginative take on traditional ball chairs, supporting flexibility and freedom of movement. Available in a variety of vibrant colors, Ballo has a dynamic nature that allows it to integrate into a wide range