Trace out a track with the smart interactive Doodle Robot Path-Tracker Toy. This clever little robot follows the lines that you draw as it rolls along Simply use the black pen on plain white paper and watch the robot come to life With an interactive optical sensor that seeks out the lines to follow Features eyes that glow and a cool rolling mechanism Makes a great gift to keep the little ones entertained Suitable for children aged 3+ Powered by 4 x button batteries (included) You can use any plain old black pen or pencil with this robot too Save 64% on the Doodle Robot Path-Tracker Toy - now only 8.99 pounds