⏳ Time waits for no one—make every second count! Never miss a deadline with clear audio signals! One-handed operation for effortless time management! Perfect for classrooms, offices, and home learning! Watch time disappear with a colorful disk! Wind it up, set it down—no batteries required! 7.5 inch size Loud audio alerts No batteries needed The TWENTY5 SEVEN Countdown Timer is a 7.5-inch mechanical timer designed for effective time management in classrooms and offices. With a colorful visual display that helps users track time easily, it features loud audio alerts to signal the end of a countdown. This battery-free timer is perfect for educators and parents, promoting time awareness in children while being easy to operate and versatile in use.