Liquid Timers S-Shape

You simply turn them upside down and watch the two differently coloured bubbles simultaneously walk down the staircase to the bottom of the tube. The liquid timer takes approx 1 min to run through. Captivating liquid timer

• Popular sensory aid
• Entrancing colours & flow
• Use to teach colours & the concept of time
• Measures: 13 x 10cm

More information below.