Stand up Electric Slider Learn to Solder Robot not only allows students to learn good soldering techniques but also provides them with a bright colorful sliding scooting robot. Operates on one 9V battery (not included) and uses 2 powerful motors and a 1 IC circuit to move in a weird pattern on any smooth surface. Features colorful flashing LEDs which make this kit a real attention getting project. Overall size of PC board is 1.8 x 4. Complete with all parts PC board and instructions. Skill level 1.