The product itself does not have batteries and needs use a battery to rotate.

[Product name] Ferris wheel permanent motion instrument

[Product material] Plastic
[Product size] 11 * 22cm
[Product weight] 250g
[Product packaging] paper box packaging
[Packing quantity] 36/box
magnetic swing: After unpacking, assemble the swing, install 4 No. 5 batteries, gently move the middle part of the hand, it will swing left and right, suitable for table decoration furnishings, it is more suitable for sending relatives and friends. Load the battery and push it gently, it will swing automatically.?

Permanent motion instrument is a kind of transfer to magnetic intensity through electric input through variable pressure, which can make it swing automatically by using the effect of positive and negative conversion energy of battery. However, what should be paid attention to is its law, which requires physical factors, balance and various decorations to make it more wonderful and dazzling. It can be placed in offices, living rooms, bedrooms, computer peripherals and other places, it makes people feel curious and relaxed after seeing it. It is not only a decorative ornament, but also an application to primary school students as physical explanations.
?