Time stands still - with one touch of the start/stop button with this SchoolTime Stopwatch from Educational Insights! Designed just for teachers, this durable, water-resistant, easy-to-use stopwatch is perfect for timing races, games, tests, and more. Displays date, time, and split/lap times down to .01 second. Features easy two-button operation, large digital display, alarm function, and adjustable cord. Includes one button-cell battery. Measures approx. 2.75" x 2.5."