Magnetic Digital Timers are a versatile, easy-to-use solution for precise time tracking in classrooms, workshops, offices, and home environments. Featuring a built-in magnetic design, these timers can be securely attached to any metal surface, keeping them easily accessible and visible during activities, tasks, or transitions. Whether you're timing a lesson, an experiment, or a daily routine, Magnetic Digital Timers provide reliable, accurate timing that helps keep you on schedule. These digital timers are countdown timers and stopwatches in one. Great for math exercises, science experiments, timed tests, games, classroom management, and more! Sticks to whiteboards or any magnetically receptive surface. Each includes one AG13 button-cell battery. Each measures 2 1/8” x 3 3/8” x 1/4”.