1. Material: wood + 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 the toy with scientific principles, make science more simple and interesting, help children learn physical knowledge
6. Training children practical ability, hand-eye coordination, exercise thinking, develop intelligence, inspire creativity, explore science
7. Size: about 15.8 x 5.2 x 2.2cm
Specification:
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