20719 Aqua Magnetic Digital Timer

The digital timer is a countdown timer and stopwatch in one. Great for math exercises, science experiments, timed tests, games, classroom management, and more! Includes one AG13 button-cell battery. Sticks to whiteboards or any magnetically receptive surface. Measures approx. 2-1/8″ x 3-3/8″ x 1/4″.