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When we are gathering together with others such as joining parties ,having picnic and so on.We always use the same kind of bottle which is distinguishable.The phenomenon is common that we take others' bottles by mistake.We will feel a little bit embarrassed and uncomfortable.This is not expected by us either."My color my drink" can help you solve the problem in a reasonable way.Now we add a rolling cirtle made up of different colors to the cap.After your drinking,you just need to turn the circle,choosing the unique color only belong to you so that you can fing out yours among the bottles easily.
Central South University
Changsha, China
Dong Qinyu,
Central South University
Hao Wang,
Central South University