Help you manage your time in your life or study， the timer, by turning the knob clockwise by one complete turn. To set the timer, return pointer to time required. When time has elapsed, the bell will ring for approximately 15 seconds. IMPORTANT: Failure to wind the timer fully before setting the timer, will result in a shortened ring. Do not place on or near hot surfaces. Do not immerse in water. To clean, simply wipe with a damp cloth.