Sand Timers are Visual Timers. For a child or an ADHDer, it can be difficult to grasp the concept of time. When we say to a child 'in 5 minutes'- it is hard for a child to know what 5 minutes feels like. For someone with AHDH, it can be hard to keep track of time. Visual timers allow us to know what 5 minutes both LOOKS and Feels like. They help in strengthening our concept of time and helping us to keep on track. Sand Timers support us in learning Time and Self-Management. They are perfect for A hands-on investigation of time for individual or classroom management. For games where the passing of time is important. These 16cm x 7cm large, Sand Timers are made with moulded plastic end caps and thick surrounding walls. Each colour represents a different timer. Red-1 minute, Pink-2 minutes, Yellow-3 minutes, Blue-5 minutes, Green-10 minutes.