The exquisitely crafted, 5-Piece Pyramid Puzzle is known in geometrical terms as a “square pyramid,” which sounds odd until you realize that true pyramids actually have a triangle base rather than a square. Put-together puzzles of this nature seem simple at first glance - until you start the process and your brain is put to the ultimate test of spatial reasoning. Pyramids are some of the most enduring and stable structures ever conceived, which is why the incredible engineering feats of the ancient Egyptians still stand today. Pyramid Puzzle #5 will grab your attention and inspire your creativity as you fantasize about rebuilding the Great Pyramids of Egypt - using all 5 pieces that are provided. The smooth, lightweight, and graspable size of the pieces ensures that children are able to enjoy and absorb the educational experience as well. Pyramid Puzzle #5, like others in our collection, comes with a sturdy wooden base, allowing puzzlers to proudly display the pyramid wherever their heart desires after they have found the solution.