50 Optical Illusion Cards
Regular price
£6.99
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.
Dimensions: 154x98mm.