Warning: Not suitable for children under 3 years. For use under adult supervision Warning: To be used under the direct supervision of an adult Popar 3D puzzles bring together technology and puzzles to create a fun way to learn and educate your children. Included with this puzzle is a free downloadable app which uses augmented reality technology to allow you to see the contents in 3D via an iPad / iPhone. As you move around the puzzle a new pop up appears via your screen which you can move around and play with as well as find out educational facts.