Excellerations Oval Liquid Timers Set of 3
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Perform various experiments with these mesmerizing oval liquid timers. How does temperature affect the flow? How do the timers vary against a stop watch? Also a great relaxation tool for stressful moments to focus the childA s attention. Use for transition time or task completion. Comes in assorted colors. Drips for approximately 1 minute. Ideal for special needs and sensory.