We are offering science toys - salt water car. Age 14+ experiencing the wonder of mixing salt water and magnesium generating the motion a perfect eco science lesson! simple kit for future engineers and environmentalist. a great chance for children to learnabout this new energy, see how amazing it is to just add salt water to have the car run. usd2.9pc
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Ivy Au (Target Depot Limited)
1/f No.60e Wong Tai Tun, Yuen Long, Hong Kong, Hong Kong
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