#TK0205
This is an environmentally safe, non-toxic and clean new energy toy.
It has three energy modes: saltwater dynamic chemical energy, solar
energy and electric energy. Children can understand the theory of
mechanical transmission through self-assembly, explore the
mysteries of new energy, improve hands-on ability, enhance logical
thinking ability, stimulate children's interest in science and improve
environmental awareness. Do it! A future scientist!
1-2h
8+