Difficult Level: 4 of 6 Get ready to tackle the challenge of the Cast Hexagon metal puzzle from Hanayama Huzzle. This intricate 3D cast metal puzzle is crafted from high quality metal and features a unique hexagonal design that will put your problem solving skills to the test.This puzzle is made up of a collection of hexagon shaped pieces, with three inside pieces and an outside frame. The pieces appear to have the same shape, but the exterior and interior are different. The puzzle's objective is to slide the inner pieces around inside the frame and rotate them to try to get them out of the frame. Designed by Mineyuki Uyematsu, the Cast Hexagon's sleek and modern appearance makes for a great gift for him or her, perfect for metal mechanical puzzle enthusiasts and those who appreciate a good brain teaser puzzle.