The concept of electric fields can be difficult visualize but this kit makes it easy. Using the conductive paper that comes with the kit a student can draw any electrode configuration and then connect the electrodes to the battery holder included with the kit. The battery provides current to the paper and the potential difference (voltage) can be measured between 2 points using a multi-meter. On a separate sheet of paper you record the voltages and locations in order to reconstruct a visual of the electric field. Comes with instructions. Kit Contents: Pad of 25 conductive paper sheets Pad of 100 field drawing sheets Conductive paint pen 4 alligator clip wires Cork board D -cell battery holder 10 metal pushpins Circle template. Multimeter and D Cell battery not included