40399703
4-in-1 new energy space exploration (STEAM scientific experiments, DIY, assembly, puzzle, physical chemistry, programming, intelligence, building blocks, science and education)
SELF-DIY STEAM TOYS: 138 ACCESSORIES3 kinds of power modules: solar energy, salt water power, battery power4 shapes: rover, CHILDREN TRUCK, rambler, mechanical dog Learn the principle of each kind of power supply, mechanical transmission principle, explore the mystery of new energy.
