Assemble a robot artist with the 4M Doodling Robot. The 4M Doodling Robot uses vibration and spin generated by its motor to create works of art. Adjust the angle and height of the robot's colored pens and watch it work. No special tools or knowledge required; the kit contains detailed instructions and all the necessary parts. The kit is ideal for young science enthusiasts, especially those with an interest in robotics. Details: Multicolor 9.5" x 2.5" x 6.5" 1 AA battery required (not included) No special tools or knowledge required For ages 8 and up