A polygonal version of Chinese Puzzle Balls - a smaller ball inside a larger ball.
The polyhedral surfaces are made from tiling pentagonal and hexagonal arrangements of triangles, and delicate pillars maintain the central ball aligned and fixed in the center. The outer ball is 6 cm (2.36 in ) diameter
This is a decorative piece good as a desktop ornament or as Christmass tree ball. Could be considered as a gift for the enthusiasts for math or geometry.