Penguin Line Following ToyAre you looking for a special gift for your kids? Or search a safe and reliable toy? Now, there is a lovely penguin that can drive on the line drawn by an ordinary pen. Featuring an optical sensor, the Penguin Line Following Toy can read any black route and will start running in circles when turned on. This toy helps children learn knowledge about the principles of optical detection and improve the kids' imagination, intelligence, and hand on ability.