Different from traditional track toys, this car adventure toy has 4pcs toy cars. Comes with 6pcs mechanical buttons, an of challenges. The scientific mechanical and physical trustable structure make the adventure rail car toy more playable. No battery is needed, and the toy car must be manually guided through each challenge. It helps children exercise motor skills, recognize color and shape, develop creativity, and cultivate problem-solving skills, hand-eye coordination. Breaking the single color of traditional rail cars, adventure rail racing toy uses colorful track design, free splicing colors are more popular with children. The unique color matching can stimulate the baby's color recognition.