{"product_id":"9781409507796_50-optical-illusions-activity-cards","title":"50 Optical Illusions Activity Cards","description":"50 cards of mind-bending illusions to surprise your eyes.\u003cbr\u003e A set of 50 of the most amazing optical illusions ever created. Each card has a mind-boggling illusion on one side and an explanation of how it works on the other. Includes a \"revealer\" card to help check colours and take measurements to show that seeing really is believing.","brand":"Sam Taplin","offers":[{"title":"Default Title","offer_id":46896582852757,"sku":"9781409507796","price":12.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/3175\/9509\/files\/9781409507796.jpg?v=1776888294","url":"https:\/\/harpercollins.com.au\/products\/9781409507796_50-optical-illusions-activity-cards","provider":"HarperCollins AU","version":"1.0","type":"link"}