1. Material: plastic + electronic components
2. Power supply: 2 x AA batteries (not included)
3. Safe material, playable and durable, more peace of mind for children to play with
4. Enhance children hands-on ability and spirit of exploration, suitable for school and home teaching
5. Combine toys with scientific principles, make science more simple and interesting, let children learn science knowledge
6. Training children practical ability, hand-eye coordination, exercise thinking, develop intelligence, inspire creativity, explore science
7. Size: about 10 x 7.5 x 15cm
Specification:
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