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50868
It is 3 in 1 Spiral Spring Science Kit which teaches how to apply kinetic force to everyday life objects and is a good introduction to physics!
You can build a motorized robot, race car, and countdown timer. All of them run without batteries or electrical power.
Recommended for ages 8 and up.
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CAUTION! | Not suitable for children under 3 years of age due to the danger of suffocation due to small parts. |
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