Teachables - Liquid Sand Clocks - Set of 4Introduce the concept of time and flow through sensory play with the Teachables: Liquid Sand Clocks Set of 4. These captivating sensory tools are filled with coloured liquid that gently cascades through internal chambers, mimicking the movement of traditional sand timers with a vibrant, liquid twist. Ideal for light boxes or tabletop use, the clocks offer visual engagement, calm focus, and an introduction to basic scientific concepts like gravity and