The fact that the dolls have a gender allows children to make an important difference between them, strengthening knowledge of differential facts. They do not contain batteries or make any sound, so the dolls do what the child wants them to. This differentiates them from other dolls that subject the child to a specific play pattern. The variation in available models means that there is always a particular model for a specific need. Furthermore, the dress collections foster manipulative skills and help toddlers become familiar with different types of zippers and buttons. Doll accessories feature a wide range of details and are of the highest quality. Made in Phytalates-free vinyl, they are soft and flexible to the touch. Age Group: Newborn + . Size: 21 cm