Hot Wheels Dino Challenge Circuit. Very exciting circuit inspired by the world of Hot Wheels. The smaller dimensions of these tracks and cars make driving and setting up circuits at home easier. The circuit includes a turbo button that allows for controlled increase in car speed for even more fun. With authentic Hot Wheels cars: t-bone shaker and Straight pipes. Dare to explore this exciting circuit with 2 super loops, cars with lights, and 5 meters of track. Suitable for ages 5 and up. Safety Warning: Not suitable for children under 3 years old.