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You put your finger through a large square cut out of a blue-backed playing card. Instantly the card turns red and the hole you just saw fingers go through somehow no longer exists. The black hole is now just a...
You put your finger through a large square cut out of a blue-backed playing card. Instantly the card turns red and the hole you just saw fingers go through somehow no longer exists. The black hole is now just a piece of black tape that is peeled off of the card.
Easy to build and fun to perform.
A real visual puzzle!
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Enjoy free home delivery on all orders over $40.
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