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The product itself does not come with batteries and needs to be powered by batteries to rotate.

【Product Name】Perpetual Motion Ferris Wheel Instrument

【Product Material】Plastic
【Product Size】 11*22cm
【Product Weight】250g
【Product Packaging】Paperboard Box
【Packing Quantity】36 pieces/case
Magnetic Swing: After taking it apart, assemble the swing, install 4 AA batteries, gently move the middle part with your hand, and it will start to swing back and forth continuously. It makes a great desk decoration and is perfect for giving to friends and family. Just put the batteries in and push it gently, and it will automatically start to swing.

A perpetual motion device is one that can automatically swing through the transformation of energy from electrical input to magnetic strength, utilizing the role of battery polarity. However, what matters is its laws of motion, which require physical factors, balance, and various decorations to make it more dazzling. It can be placed in offices, living rooms, bedrooms, and around computers, etc., to create a sense of curiosity and relaxation in people. It is not only a decorative item but also serves as a physical explanation for primary school students.
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