The 137-467pcs Children Electric Track Toy Car Engineering Car is a comprehensive toy set that combines entertainment and education. With its elaborate track system, electric cars, and engineering vehicles, it promotes creativity, imagination, and cognitive development in children. Made from durable ABS plastic, this toy ensures safety and longevity. The engineering aspect of the toy encourages an interest in STEM subjects, making it an ideal educational gift for kids aged 4 to 12 years old.