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Crab Pincers can help you when you cannot unscrew the cap of the bottle. Clip the cap with the Pincers, and the Pincers will offer a fulcrum so that it is easier to unscrew the cap.
Guangdong University of Technology
Guangzhou, China
Weibin Guo,
Guangdong University of Technology
Chen Zijian,
Guangdong University of Technology
Yin YInghua,
Guangdong University of Technology
Chen Qiuyi,
Guangdong University of Technology