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Travel Case
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Pieces: 52PCS
Hand Crank DIY Generator Science Toy for Children BABY CARRIER Travel CaseThe large and small transmission wheels are connected to each other to increase the generator speed. The generator has a magnet and a copper coil. The copper coil rotates to cut the magnetic induction line to generate an induced current, and the voltage is raised by the booster plate. Scientific Principles Toy Model Science Enlightenment for Children Aged 6 12 Product material: logs, environmental protection, health Product features: modular, complete
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