sensorytoywarehouse.com
Visual Sensory Liquid Timers Oval Shape - Asst 3 Colours - Sensory Toy Warehouse
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. Please note these timers are for sensory calming and not for accurate time management. The action of the liquid showers can [...]