Mind Sparks Classroom Timers are the perfect tool for helping students and teachers stay on track throughout the school day. With their colorful, easy-to-read displays and simple functionality, these timers are ideal for managing time during lessons, activities, group work, transitions, and more. The maximum time limit of 60 minutes will help keep children on task and features a loud ring when the chosen time ends. Mouse is approximately 3"H and Frog is approximately 2¼"H.