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This is a cotton swab packaging design.It’s reel type storage is easy to store and save space. Each part has two cotton swabs,one’s head near the other’s tail.This can save the packaging space also.when you use it, the number is besed on your need.The advantage of design is convenient for split and ensure that each cotton swab is clean and healthy.
Ningbo Institute of Teachnology
Ningbo Institute of Teachnology,Zhejiang University
Jianfen Jiang Linxia Zhou Lingjie Zhu Zhipeng Fang