This iconic design is by by Ueli Berger, Eleonora Peduzzi-Riva, Heinz Ulrich, and Klaus Vogt. It consists of twenty four sections in brown leather and felt, that are connected with steel pin joints and zips. Four of the sections are slightly raised armrest sections that go on the ends. They can be attached and configured in many different ways, the flexibility between the sections mean the sofa can curve back and forth in wonderful shapes, giving rise to the name of “the snake sofa”.