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상품번호 : 223298 | |
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● LED color changing science in motion!
● Demonstrates principles of Newton's third law “every action has an equal and opposite reaction”
● Watch as energy transmits force through stationary spheres and pushes sphere on the other end away
● Balance ball set features translucent balls in LED red, blue, and green
● Measures 6” x 4-3/4” x 6”
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