1000 Pieces of 5MM 10 Colors building fidget blocks toys with metal box.Build and engineer limitless shapes and structures. | BUILD YOUR UNIQUE DESIGNS: Studying math and geometry can be boring, but learning geometry and math through play, that's a different story; this set of magnets make learning interesting and hands-on. | Develop Imagination - Improve people's intelligence and imagination.If you want to make more complex models, you can buy more items combined together. | BEST TOY FOR PASSTIME - Do you feel bored at work sometimes? It can cheer you up. You will come up with countless shapes with no name, since you are the first person to create them. | Service Assurance -- If you don't like it and 100% money back guarantee from LOVEYIKOAI.So just click ADD TO CART now! WARNING: Keep away from children, recommendation age 14+.