Have you heard about these aperiodic tiles? This 13-sided tile shape is designed based on the math concept of aperiodicity, meaning that the pattern will never ever repeat itself. This makes it a fun, brain-building puzzle for children and adults. Arrange the tiles in unlimited ways to create unique designs and engage your creativity skills. Use this hands-on activity as a gateway to other mathematical concepts or simply relax and play puzzle games. The tiles are made with a recycled PET felt to ensure future generations are able to puzzle and discover too. The set also comes with guide that suggests a few ideas to get you started. Includes 30 Einstein Tiles and play guide with ideas.