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Since we came to the world, parents always prepare complete commodity to afford a carefree life. However, some of them can’t be suitable for us anymore after growing up , such as height-chart. All we do is to record numbers but not the memory. After we grow over the chart, it becomes one more beautiful but useless decoration of the house and it is quite a pity. Accordingly, the concept of combining lighting and height-chart gives a chance to increase its value. Stay more memory by leaving a picture when recording the numbers of height.
Yuan Jia Peng,