Welcome to our shop! Introducing our Inductive Car Toy, a novelty item that will bring hours of fun and excitement. This car toy is designed to follow a black line drawn on a white piece of paper. It is equipped with an optical sensor that reads the line and allows the car to move automatically along its path. The car toy is made of environmental ABS material and has a compact size, with a body length of about 7cm. It is powered by 4 button cell batteries, which are included in the package. With its power switch turned on, the car toy will start moving on its own, following the line with precision. To use the Inductive Car Toy, simply draw lines on white paper or a whiteboard. Once the car toy is switched on, it will detect the black line and run along it. Please note that if the line is too thin, the car may deviate from the line. Also, when the car reaches the end of the line, it will continue to move in the same direction. In case the car's direction is incorrect, it may be due to the battery being reversed. Please reinstall the battery correctly by ensuring the side of the battery with the word touches the spring in the battery box. To ensure the longevity of the car toy, avoid placing it under direct sunlight, fluorescent lights, or on shiny paper, as these may interfere with its sensor. The package includes 1 Inductive Car Toy, 1 pen for drawing lines, 1 white paper, 4 button batteries, and an instruction manual to guide you through the setup process. 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.