Oozy Gunge Timer - Set of 3 - Purple, Blue & Green
Three NEW colourful translucent tubes where 'gunge' oozes from the top chamber when the tube is turned over. The consistency of the gunge alters with the temperature of its surroundings: compare how the speed and flow changes after the tube has been in the fridge for a few minutes, or left in direct sunlight.
Set of three.
Size: 100mm high