The carved sphere and base are made of concrete. The concrete has fibers and an additive to increase strength and weather proofing. This concrete formula allows the pieces to be cast hollow and thus fairly light. The finish is with an industrial dye that combines with the concrete chemically and will not fade or flake.
Dimensions: The carved sphere is 18" in diameter. The base is 48" high at the base and 25" in diameter at ground level.