The Magnetic Big Timer features a 60-minute countdown with an alarm. Wind up clockwise one full turn to "0" to set the spring for the alarm, then dial back counterclockwise to set the red pointer at the desired minutes. The alarm will sound once time has elapsed. A large, strong magnet on the back lets you easily attach the timer to magnetic whiteboards, steel filing cabinets, steel lockers, refrigerators, and more. Measures 7.5" in diameter.Details:Multicolor7.5" diameterDurable plastic with strong magnetic backingSold as a pack of 2 timers60-minute countdown with alarmClassroom timing, presentations, kitchen use, and other timed activitiesLarge-faced analog timer