The new coronavirus broke out worldwide last year. In the severe period of epidemic prevention and control, people are in a state of home isolation, and books, toys, fitness equipment and other industries have ushered in several times of growth. As a "household artifact" puzzle, the growth momentum is particularly prominent.
China's national standard for children's toys is GB6675 "toy safety", which has quality requirements for toys. There are different rules for toys used by babies of different ages.