[How to use] - Instructions for use: 1. When you open the box, the default green leaf position is time "0". 2. Turn the start time clockwise and set the leaf position to 55. 3. Now you can set the time by turning it counterclockwise. (For example, turn it counterclockwise for 15 minutes, set the blade position at 15.) 4. After 15 minutes of all settings, the timer will ring. NOTE: You must do step 2 for the timer to work. The timer is mechanical. No battery required. [Personal Assistant] - This timer will always remind you when you are very busy in the kitchen. No more worrying about boiled water drying out and burnt dishes. [Multi-purpose] - Not only suitable for kitchen, but also for study, home, life, home, improve study efficiency. [Features] - Creative styling. Calibration is clear. The base is stable. Various shapes. Let you fall in love with this little timer and stop being bored.