FULL THROTTLE: This circuit with retro-friction vehicles is the ideal toy that will provide hours of fun to all budding drivers. The +: The circuit allows great collisions in the ball as well as high grip CONTENT: The box contains: the infernal ball and 2 Vehicles. It is equipped with advanced technology: retro-friction. Pull the vehicle backwards 3 times, it stores energy, let go, and the race is on. INSIDE AND OUT: Our vehicle is made with plastic for maximum durability. Resists shocks and scratches. Use alone or with others indoors or outdoors for optimal performance on all surfaces. A GREAT GIFT: This fun toy is ideal for young driving enthusiasts, it is also a learning tool for children who will be able to develop their dexterity and coordination without using a screen.