The simple idea behind this now-classic stool is based on three bent legs and a round seat. The secret of the original Aalto stool´s success lies in its legs´unique bends that eventually became the distinctive feature of all Aalto furniture. The colours of this series refer to the cheerful colour scheme of the interior of Aalto’s  Paimio Sanatorium (1929-1933). The stool is also manufactured in a four-legged version (model STOOL 60E)