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Fashionable ring can not only used as an adornment,but also a device to pull and push pushpin. It can be used in all kinds of beautiful pushpins. Design makes our life more beautiful and convenient .we can combine pushpin and ring together or seperate them through rotating the ring, and this will achieve the function of pressing or pulling the pushpin.
Chen Yongjun Chen Hongyu Deng Suiqi Zhang Shiming