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Fifty cards featuring mind-bending illusions to surprise your eyes, taken from the personal collection of Al Seckel, world expert on visual illusions. 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.
Age 5+
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£3.95 Standard Service 2-3 days
£6.95 Express Service 1-2 days
Full refund or exchange for goods returned within 30 days of receipt.
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