Magnetic Building Tiles is the original and premium 3D magnetic building set on the market providing safe imaginative play that makes math and science fun and engaging for children of all ages. Each tile edge is magnetized so you can connect them to build anything you can imagine. If you can click it, you can create it! Not only they are fun, but they also help develop fine motor skills as kids stack, build, count, match and click together their creations. Safe, durable tiles made with food-grade ABS (BPA FREE) plastic free of phthalates and latex.