Visual timer features clear, three colour lighted display and clear 1-2-3 operation. Five minute increments from five minutes to two hours. Understanding and being aware of time limits for certain activities can assist children with the development of appropriate social behaviour in group settings, and can support children who have difficulty with transitions from one activity to another. Timers can also act as a visual communication tool for children who need further support.Set it in two simple steps : Turn the dial to choose a length of time and press start!Additional info: Made of plastic. The time Tracker turns green, yellow then counts down the time. 360 degree viewing makes it visible from any angle Program from 5 minutes to 2 hours The perfect way to manage and track time! Audio and visual alarms Measures 12 H x 8.5 W x 8.5cm L. Requires 3 x AAA batteries, not included.