These are amazing metal sculptures by Kevin Duval. Besides being amazing to look at as still compositions, the are kinetic. They move. They are built with multiple axes of rotation, so individual arms can spin or rock in different directions. They range in size from two feet in diameter to as much as eight feet. Kevin builds them out of various kinds of metals which he machines, works, grinds, polishes, and dyes. Some have adjustable counter-weights which will let them move in different patterns and rest in different still compositions. To really appreciate them you need to see them in motion, which you can, here. And you can learn more about Kevin and his work, here. Think how awesome one would look in your living room!