The sculpture is a striking example of Robert Jacobsen's earliest, rotatable sculptures. In 1955, Jacobsen's colleague Victor Vasarely arranged an exhibition of kinetic (movable) art at Galerie Denise René, which led to a discussion on movement in art between the two friends - and a clarification of Robert Jacobsen's position on the subject. Robert Jacobsen: “[...] I thought about the idea of kinetism and found that it did not create a movement more interesting than that of a watch, as it always ended up where it started (...). I said to Vasarely: for me, movement is the shock you get when you see something. Otherwise it becomes a pendulum. It is just illusionism, if a picture vibrates as you walk past it. I don't want illusions. I want a concrete feeling. Since we have to have an expression which ends in 'ism', I call my idea 'ideo-motorism', the motorism that comes from the shock of seeing the things. Vasarely replied: I can't exhibit something that doesn't move. I replied: it moves more than you think”. (Pierre Descargues: “Robert Jacobsen: Conversations 1947–1991”, Copenhagen ,1996, p. 49).