[description]: the timer clockwise rotating a circle to zero on the scale, and then counter clockwise reversal of the required time, timer will then ringing tones.
[function of the]: ribs to cook for half an hour, the crab to steam for 10 minutes, milk for five minutes on crackle the, when you in the kitchen busy round. If at any time to remind you that time is up, should have much good. These small timers can help you, you don't have to worry about the water boiled, the dishes are burned. Nap for half an hour is enough, the hair baked for 20 minutes, the child half an hour to finish a set of mathematical exercises, 20 minutes to recite English words, morning exercise at least half an hour..