This visual tool that can be manipulated allows children to become familiar with the action-reaction principle. The sensory hourglass is an element to include in your sensory space. The child can watch the falling drops form bubbles at the base of the hourglass, a fascinating movement during which the child can relax. It helps the child to calm down and return to calmn in all tranquility.
Educational: aids in socioemotional learning through sensory exploration 
Useful: its small size allows you to take it everywhere you go 
Sensory: provides a fascinating and realistic visual experience