No plugs nor contact electrodes, yet it still “lights up” when held in a high-voltage field! Your students will be amazed. This neon wand is filled with neon at reduced pressure and will glow a reddish-orange color when you hold it in or pass it through a high-voltage field. This wand is easier to handle than a large fluorescent lightbulb. 24 cm × 1 cm. Comes with background information on neon.