The straight lines of the two triangular columns overlap and then move apart, presenting a different movement each time the wind blows. The arcs they describe are limited to 180 degrees and, although graceful, they are also sharp. George Rickey has produced many works like this one consisting of extremely simple lines, but utilizing different numbers of lines or colors. He has also produced many works with complicated shapes, consisting of numerous parts and resembling chandeliers, or others that comprise flat planes. He made his first experimental mobile in 1945 and began to focus on metal kinetic sculptures from 1950.