The Pentagon 12 Set is not top secret, but it is top-notch! With the 12 pentagons in this pack, you can create a sublime dodecahedron. But you can do much more with it. These pentagons are the ideal addition to your existing Magformers collection. Combine the pentagons with square and triangular Magformers magnets to build the most spectacular creations in 2D and 3D. Your building toy is colorful and fun, but also perfectly suited to stimulate your mathematical thinking. If that's not an excuse to play for a long time!