Great fun science toy, ideal for teaching children about the movement of energy and circuits. This energy tube lights up when both ends are touched as long as it makes a circuit, and makes a noise.

A group of children can stand in a circle all holding hands, with two children holding either end of the energy tube. As long as all the children remain holding hands and the circuit is not broken the tube will remain lit up. If a child lets go and the circuit is broken the light will go out. Dimensions: 17.5cm L x 3cm Diameter