Grimm's OctagonGrimms Octagon is a vibrant geometric building puzzle that invites children to discover the endless possibilities of the triangle. From small to large triangles, simple shapes transform into hexagons, stars, and countless other geometric forms. One basic shape becomes the foundation for creative exploration, symmetry discovery, and hands on learning. This 32 piece set comes in a sturdy wooden frame and features chunky solid wood blocks, each 4 cm