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sport ring / sport ring

sport ring
sport ring

This is a product that combines the two functions of exercise bracelet and body detection.. So the hand ring is divided into positive and negative sides, the positive and negative two sides are completely symmetrical, the two sides of the hand ring are different colors, representing different functions.

University

Beijing University of Chemical

Beijing University of Chemical
Technology
Beijing, China

Zhang Yuwen,
北京化工大学