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The traditional toothbrush is very easy to be dirty on the table, now the toothbrush can keep clean for the angle with the table. The toothbrush can hung the cup to keep the hair clean.
The water flow to the children’s hands very easy when they brush their teeth .,The inflection part of the toothbrush can avoid the water flow the hands
East China University of Science and Technology
Shanghai, China
East China University of Science and Technology
Shanghai, China
Guang ru Ji ,Wenjuan Wan