Connetix magnetic tiles encourage hands-on learning through imaginative, open-ended, STEAM-based play. Each tile has magnets ultrasonically sealed inside, allowing kids to snap them together as they build 2D and 3D creations. With this 48-piece portal pack, kids can add architectural features and more details to their construction projects. Windows, nesting squares and doors let budding builders create colorful, complex structures. Plus, the mini squares feature Smart Spin™ technology, which allows magnets to rotate 360 degrees to build in new directions.