Specification: This ?Tornado Rocket? is used for the study of the creation of Tornadoes and Twisters. These natural disasters are extremely dangerous, and are caused by low air pressure. The rocket is cone-shaped 10 cm in height. The rocket is made of transparent acrylic with a diameter of 10 cm and 50 cm in length. The rocket is attached to a triangular base. It is attached to a power supply 220 VAC 50 Hz. It comes with a on/off switch.