Ikea Vitamin stool with adjustable height
Shaped like a vitamin pill, this innovative stool has a base that is shaped to allow the user to easily rock it sideways to alter seating position. The gaslift mechanism in the column varies the seat height from a minimum of 51cm to a maximum of 71cm, operated by pressing buttons on the underside of the seat. The black crepe seat cover is 100% wool, if I remember correctly. Seat diameter is 41cm. Nicholai Wiig Hansen designed the Vitamin for Ikea. Two marks are moulded into the plastic on the