twenty5 seven countdown timer 7.5 inch; 60 minute 1 hour visual timer – classroom teaching tool office meeting, mechanical countdown clock for kids exam time management magnetic black twenty5 seven <b>attention:</br></br>this is a mechanical timer, clockwork spring wind-up is required for every use. please follow these 2 steps: </br> ★step one: wind-up the timer</br> enable alarm by turning the rotary knob clockwise until the red disc pointer reaches 55.</br> ★step two: set countdown time</br> turn the rotary knob counterclockwise from 55 to the desired minute.</b></br></br><b>do not turn counterclockwise when pointer is at zero (0), otherwise the clockwork mechanism will be damaged. gentle handling will prolong the life of the timer.</b> </br> </br> </br> this twenty5-seven 60 minute visual timer is the perfect tool to maximize productivity and concentration. </br> </br> visualizing the passing of time is useful to understanding how much time is left for a given task, and motivating you to remain focused. the timer is designed to stand on its own, hang on the wall or stick to a magnetic surface. it is highly suited to timing exams, homework, play time, tv time, cooking, etc. </br> </br> this 60 minute visual timer is fully mechanical, meaning you never have to worry about replacing batteries. finding a new set of batteries when you are supposed to be focusing on something else can be a nightmare. the loud audible ringing lets you know when the time has fully expired, and the red disc makes it easy to keep track of time and avoid missing the end of the allotted time period. </br> </br> this timer is great for stress free management at work, school and home. alternatively, it is also commonly used in the home to make household chores run more smoothly. it’s perfect for managing time intervals in office, workplace, home and classroom.