Little Story Kids Toy Pull Back Bus and Motor Car by SAM BOX comes with and 6pcs of car set. Cars are made from high quality original ABS, which is durable, non-toxic (EN Grade), BPA Free and eco-friendly. It is designed specially for baby hands, easy to grasp and take. The pull-back-and-go mechanism for toddlers are free wheel and inertia instead of battery for convenience and baby safety. Utilize the principle of small resistance, Just pull cars back, they will go ahead and last for quite a long distance, which attracts child to chase to develop athletic ability. , , It's also a good idea for room decors as collections or gifts for birthday or party.