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Einstein Hollow Face Optical Illusion Toy

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Here is one of the coolest optical illusion toys we have tested. The Einstein Hollow Face is a concave mask of a face that appears to be a normal convex face when viewed at the right angle. You can attach it to your window or simply hold it with your hand to experiment.

Einstein Hollow Face Illusion: Mindblowing Optical Illusion Toy ⭐ Gadgetify

The effect is even stronger if you look at it with one eye closed.


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