These sculptures are small, approximately 3 to 4 inches, and illustrate the human form in motion.  The larger people are balancing on blue tubing and the smaller people are balancing on uranium tubing. 

If you follow an artist for any length of time, you will see the ideas evolve naturally.  Lewis is well known for evolution of his work from the large Indian Dancers and Dinosaurs down to these very small, action packed figures.