The NIB Just Play 12.5 inch Scientist Ada Twist Lab Doll is a interactive and educational toy designed for children aged 3 and above. This doll, named after the popular character Ada Twist from the book and TV show, features curly black hair, brown eyes that talk and sing, and comes in a lab doll design that brings science and exploration to playtime. Made of plastic, this 2021 manufactured doll by Just Play is sure to spark imagination and creativity in young minds.