This Jumbo Set contains curious devices and props which enable you to entertain and baffle your friends and not only that but educate them too once they learn the scientific principle. 25 Brain Bafflers included: Anti-Gravity, Morpho, Fishy Tank, Eureka, Back to Front, Guestimation, Level Headed, Super Spinner, Hat of Mystery, Coinundrum and WOW and HOW cards which explains these tricks and more. Bonus Lenticular Collector's Disk with science fact.