Upgraded Visual Timer, Better Time Management,Better Life! 4-inch Screen - The big screen allows us to see the time more clearly from a distance Protective Case - Protective case is coming with the timer and makes the timer drop-resistant Alarm-stop Button - Alarm-stop button makes the timer more convenient to use Low Power Reminder - The low power indicator light wil flash every 5 seconds to remind of low power Office - With its help, enjoy your free time after finishing your work with high efficiency. Step 1: After install batteries correctly,turn it clockwise to set the time, it starts to count down. Step 2: When time is up, it will ring toremind, stop the alarm by pressing on the top button. Warning:Do not turn the knob from two directions over"0"minutes to qyoid damaging the timer. Colour:Green Material:Plastic Package Contents: 1 * Timer