This Van De Graff Generator is used to demonstrate the theory of electrostatic. This Generator is capable of generating over 10,000V. This includes a mechanic for generating electricity which uses 220 V A.C. This product includes a spherical figure with 20cm. in diameter, which can be opened and another small spherical figure (small size) with diameter of 6cm. used for receiving electric charge, convenient usage, and clear scientific results.