Build a robot that is a drawing artist! Build Doodling Robot Fun Science Kit includes all building parts to assemble a creative robot that doodles a picture without your guiding hand. The Build Doodling Robot Fun Science Kit from Educational Toys Planet comes with 3 color pens. Doodle Robot's motor makes it shake and spin to draw spectacular patterns and drawings on paper. Remove the pens from the body and the structure becomes a cool vibro robot that slides across smooth surfaces. The drawing robot building set comes with full assembly instructions. The doodle robot requires 1 AA battery (not included).