Tedco Rattleback Scientific Toy

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SKU: TED-56001


The rattleback is a science oddity - when placed on a non-slippery flat surface, you can spin it in one direction, but if it is spun in the "wrong" direction, it will stop, "rattle" up and down, and then spin in the opposite direction. Plus, when laid on the flat side, it becomes a magnifier. For ages 6 and up.

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