Simple Concept As Time Passes: The magnetic timer for the classroom features a white progress bar that disappears counterclockwise as time passes, helping kids understand time better and improve time management skills Easy To Use: This visual timer for kids is easy to operate with no ticking noise, making it for classroom use. The 4-in-1 timer functions as a clock, alarm, tomato clock, and 60-minute Color Visual Timer Ring: The large visual timer for classroom activities has a vibrant color ring that adds a fun to timing tasks. It's for kids and improves classroom time management No Ticking And Mute Features: The timers for classroom are designed with no ticking noise and a mute feature, ensuring a quiet and focused learning environment for students Magnetic Timer For Classroom Whiteboard: This visual timer for classroom is magnetic, making it easy to attach to a whiteboard for clear visibility. for helping kids stay on track and manage time effectively Function:Clock/timer/alarm clock/tomato clock Power Supply:2 x AAA batteries(Not included batteries) Colour:White Material:ABS Package Contents: 1 * Children's Self Discipline Timer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.