3+3 Pcs colorful pull back race cars toys. These race cars measure approx 5.0 inch, bright and colorful is made for kids 3 years and older. Just pull it back and move forward naturally, and the smooth wheels can keep the car running for a long time. Racing toys offer a tangible introduction to concepts like motion, friction, and inertia, letting children explore the science behind speed and movement. The metal body bottom of the car is made of high-quality ABS plastic, which has passed American safety standards.