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It's been extensively tested
Button cell batteries included for lights
It's an animal
stickers and conductor figure for pretend play
TopSecret cf-type-games-puzzles It's been extensively testedA Kinetic Mystery! Can your brain explain what your senses experience? More than a mystery it's an exercise in knowledge! Spin this unique top on its base and watch it continue for hours, sometimes days without stopping Small Parts Ages 3 and up. The Science of Top Secret_ The "Top Secret" consists of a spinning top with a radially oriented magnetic field and an associated base that houses a conductive coil. When the top spins past the center of the
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