Visual timers reduce resistance to routines, and help manage a class or therapy session. Time Timer displays the passage of time with a disappearing red disk providing a stress-free time management. Recommended by Autism and ADHD experts to ease stressful transitions, encourage confidence, independence and natural talents like visual thinking. No set up required. Optional audible time’s up signal. Features: 5.5" x 7" size, carry handle, volume control, protective lens, center-dial for setting the disk, lightweight anti-static disk, silent operation.