1. Material: wood + plastic + electronic components
2. Power supply: 2 x AA batteries (not included)
3. Safe material, durable and durable, children play more at ease
4. Improve children hands-on ability and exploration spirit, suitable for school and home teaching
5. Combine toys with scientific principles, make science more simple and interesting, let children fall in love with science
6. Training children practical ability, hand-eye coordination, exercise thinking, develop intelligence, inspire creativity, exploration of science
7. Weight: about 150g
8. Size: about 11.5 x 7 x 7cm
Specification:
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