Phenomenal Foam Flyer Book Author:Polick and Davis, Polick, Davis Heads up! They're foam and they're fun! These futuristic phenomenal foam flyers are certain to grab attention. Each of the four flyers demonstrates a cool flight principle: life, drag, gravity, and momentum. These principles, along with interesting historical facts, tips on technique, and game suggestions are revealed under the flap on each sp... more »read. Flyers fit neatly back into book and can be taken everywhere. To the beach, to the park, to your own backyard! Kids of all ages will find the book as whole to be unique in concept and style.« less