An ergonomic and stylish “Ballo” (office) stool, designed by Don Chadwick and manufactured by Humanscale in the USA around 1990. Designed for a more comfortable and healthy seating position, this unique stool can perfectly be used at home or in the office space. The round shapes invite the user to move around while seated, adding to a healthy seating position as well as more productivity and joy during work! Humanscale is the leading manufacturer of ergonomic products and the Ballo is an iconic part of their collection. Made of white plastic and black rubber, the piece fits in many different decors adding a touch of style and a practicality to the interior! Marked in the frame, as shown in photos. It remains in very good, vintage condition with minor wear consistent with age and use, preserving a beautiful patina. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution