Alex Toys future coders cube stackers lets tomorrows Genius’ stack cool cubes to make creatures! challenge cards mimic computer programs with algorithms for building. Follow the sequence of arrows to build animals with cardboard cubes, then check the back of the card to see if you got it right! add crafty elements for even more personality. Use the cards to make 12 robotic creatures or have fun creating your own! includes 8 cubes, game board, puzzle cards, pipe cleaners, colorful punch-outs and easy instructions. Recommended for children 4 years of age and older.