Teachables Stopwatches - Pack of 15Time to get accurate with your measurements! The 15 pack of Stopwatches is perfect for classrooms with smaller groups or individual use. These hand held devices offer precise timing down to 1 100 of a second, making them ideal for physical education and science labs. Each stopwatch includes a wrist neck strap and is water resistant, ensuring it can handle all your classroom activities. Whether timing a race or measuring experimental intervals, these