Ginger Fox Optical Illusions You won't believe your eyes Mind-baffling illusions Perfect stocking filler Addictive fun You won't believe your eyes. Optical Illusions contains a series of optically deceiving and mind-baffling illusions across 50 large-format cards. Full of head spinning, ambiguous and impossible imagery, you won't be able to take your eyes off them. Presented in an attractive dispenser box. Suitable for ages 14 and up. Box contents is 50 optical illusions cards.