Provide kids with the gift of sensory play with a unique toy that will delight their senses. The Sense and Grow Dual Liquid Timer is a great focusing tool that helps kids with ADHD, ADD, Autism, Anxiety or SPD. It provides a hypnotizing effect and calms them down as they observe the satisfying flowing bubbles and spinners. Simply turn your timer over to start the clock and watch as gravity pulls the bubbles down at a very slow pace.