[Time Management] This can help people with less time, low execution, easy time, can improve time management, children and adults can work and live in an orderly way. [applicable to various occasions] Our visual simulation timers apply on various occasions, which can help teachers manage time during class and is also a good assistant to manage working hours . This can help parents effectively affect the time between games and learn to give their children. Simple and practical design 60 minutes of visualization time. After adjustment, the red disc will disappear counterclockwise over time. Time management tools for families, offices and classrooms and other special occasions. [Easy to use] Tick is very weak. Very suitable for a calm environment. It's small and durable. a single weight: 80g (white box) packing: White box + manual French, white box size: 8.8 * 6 * 9cm Battery: 2 * AAA, unit price is not included, need for supplement 0.8 yuan / one. of