Description: Features: 100% brand new and high quality Inductive route: Automatic follow the black line. The robot will follow the route witch painted by children. Magic and interesting! Easy to play: Just draw line on the white paper or board with black pen, put the car on the line, it will follow the line automatically! Made of high quality plastic, safe and non-toxic, durable, eco-friendly material. Battery: Use button cell batteries x 4, easy to change battery when running down of battery. The Toy has an optical sensor that reads the black line drawn on a white piece of paper. Perfect toy gift for kids! Lovely robot with LED light eyes and swingable arms! Engage your kids to creative thinking, imagination, precised drawing skills, and even timing with this toy. How to play: Use an ordinary dark colored crayon or marker to draw a line on a white piece of paper. Turn on switch on the button of the robot. Place robot on top of the drawn line. The robot will run on the line automatically. If the line finished, the vehicle will continue in the direction followed from the previous line. If the line is too thin, the vehicle may stray off the line, please make the line thicker ( the line should be a quarter inch thickness ) Specification: Material: Plastic Optional Color: Blue, Orange, Yellow Size: app. 9x5x7cm(3.54x1.97x2.76in) Power Supply: 4 x Butten Cell Batteries(Included) Quantity: 1 set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Inductive Electric Robot 1 x Black Pen 1 x White Paper 1 x User Manual 4 x Button Cell Batteries (other accessories demo in the picture is not included.)