This timer includes a green, then yellow and red area to help your students visually prepare to finish a task. The disc gets smaller as time counts down to help your students manage their time. A ringing chime will sound for approx. 3 seconds when time has elapsed.
The Tri-Zone timer includes a built in stand so it can sit on a desk and a heavy magnet so that you can also place it on your magnetic whiteboard, filing cabinet, or even a student's locker. Best of all no batteries are required!
Size: 6" x 6"