Simple to operate for elders and kids Just turn the rose color disk clockwise about a circle ( but do not exceed the 0 scale), then turn back to your desired time. When time is up, the disk disappear with an alarm. No need any button to set the time anymore and it can be operated easily and simply. The strong magnet on whole backside make you place our timer to the oven, refrigerator or any other metal panel and the portable size make this simple timer easier to position where it should be. Visual color dial timer Rose colored Disk make it easy to read how much time is left. When you rotate the visual timer, big rose color disk will appear. As time counts down, the disk will gradually disappear. Easy to see the visual color dial even from a distance. Eco friendly design This product is powered by manual winding only and dont require batteries. No need to change the battery every time and don't waste your valuable time and money to buying additional batteries. Easy Time perception Our visual timer make it easy for your kid to understand the passage of time visually and the ticking sound will give your kid the sense of how the time goes by. Bold black white and Rose color graphics on the large dial face make setting timer easy and fun for kids. This would be a good gift for teacher or family with young children or children This versatile timer recommended for food cooking, eggs boiling and oven baking in the kitchen, for students to keep track of study, exercise and homework at home, classroom, gym workout, games and other activities, and any place where time management is required, such as a hair salon for chemical, coloring, cosmetic and tanning processes, in the office for set the meeting time.