Although there is no direct harm, Chinese and foreign toy editors still advise parents not to let their children play with magnetic toys for a long time, for fear that children may accidentally eat magnetic balls and magnetic toys and cause injuries. The second child has a weak sense of health and eats without washing his hands after playing. After a long time, lead will accumulate, and high lead will easily lead to various diseases. In addition, children's toys should choose trusted brands, buy toys in regular supermarkets and shopping malls, pay attention to the national compulsory product certification mark, and see the product name, manufacturer information, main materials or ingredients clearly. Young manufacturers will use toxic pigments or formaldehyde content exceeding the standard, resulting in defects such as baby's brain.