We had a home but no proper big chair, so I decided to make one, but some way a really new one. After some drawing I noticed that the shape of the chair had become so simple that it was merely a ball. I pinned the full scale drawing on the wall and sat in the chair to see how my head would move when sitting inside it. Being the taller one of us I sat in the chair and my wife drew the course of my head on the wall. This is how I determined the height of the chair. Since I aimed at a ball shape, the other lines were easy to draw, just remembering that the chair would have to fit through a doorway.

After this I made the first prototype myself using an inside mould, which has been made using the same principle as a glider fuselage or wing. I covered the plywood body mould with wet paper and laminated the surface with fiberglass, rubbed down the outside, removed the mould from inside, had it upholstered and added the leg. In the end I installed the red telephone on the inside wall of the chair. The naming part of the chair was easy, the BALL CHAIR was born. — Eero Aarnio