Teachables Sand Timer Set - 1 to 9 Minutes, Set of 9Time is ticking with our Sand Timer Set! This 9 piece set is perfect for a variety of time related activities, experiments, and time management exercises. Whether you're helping students understand the passage of time or using timers in classroom games, this set provides a visual and interactive way to engage with time. With timers ranging from 10 seconds to 3 minutes, it's ideal for teaching patience, focus, and efficient time management skills!