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Floating & Spining Magnet Demonstration
생성: 2018-10-20 / 수정: 2018-10-20
Floating & Spining Magnet Demonstration
SKU:
PHM-S206
가격:
US$7.20
Country of origin:
중국
설명
This clever little device is awesome! The magnet floats in a cradle, and can be spun. Because there is only the friction of air, the spinning motion will last a very long time. This is a wonderful demonstration item. Don't miss it!