From the manufacturer: Little ones will enjoy the Flintstones Stone Age Memory Game! You don't need to be a prehistoric scientist to build your own Stone Age Television, Rock Guitar, or Baby Carriage. Each of the 12 inventions in the game is split into 4 cards. Collect them all and you can keep the invention. Play with your friends to see who can collect the most inventions, or use the special rules to play by yourself. For 1 or more players. Ages 4 - 8.