Magic Inductive Robot Toy TracerBot Interactive STEM Toy Follow Black Line with LED Light Educational Toys for Kids…

About This Product :

• Scientific gifts for children: robots can follow black lines, children are free to set tracks for robots, children will be surprised by the robot”s actions, stimulate children to explore the principles behind, stimulate children”s interest in science.
• Optical induction principle: there are two optical sensors at the bottom of the robot to correct the direction of action of the robot, steering flexibly and following the black line.
• A variety of ways to play: you can set a plane track for the robot, can also roll the paper into a ring, let the robot walk in the ring paper. Multiple robots can race in the same track, or two robots can walk in the opposite direction for sumo competitions.
• replaceable battery: the robot needs 4 LR44 button batteries, the product comes with 4, you can also buy in other stores.
• Tip:The line thickness should between 0.4-1.0cm(0.16-0.39inch). 0.6cm(a quarter inch) thickness is best, and non sharp-angled line. The car will turn in circle if placed elsewhere until it finds a black line to follow.