Dolls are the most well-known and best-selling dolls in the 20th century. Dolls and other related accessories are made in a one-to-six scale, which is the largest size of the doll's house model, also known as playscale. The copyright of the doll is now owned and produced by Mattel, and has been sold to more than 150 countries in the world, with a total sales of more than 1 billion yuan, and a series of film and television works, mini games and peripheral products have been derived from this. Dolls, toys that take the appearance of animals are generally called dolls. In Chinese, doll also means child, so the word is used to refer to these scaled-down dolls. The appearance of dolls ranges from abstract to realistic, covering appearances of different races, ages, and genders; all countries and ethnic groups have developed dolls with regional and cultural characteristics due to their own needs and cultural backgrounds.