Object with Red Ball , by alexander calder , 1931 , sculpture, mobile , Kinetic Art style , from SHIFT TO ABSTRACTION: 1930–1936 period , Circle
A black circle with a red ball hanging from it.
A black circle with a black hole in the middle is on display on a white pedestal.  There is a thin white pole on the right side of the circle.  A red ball is hanging from a thin wire on the left side.  The pedestal is made of clear plastic.  