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Toothpick will appear pointy head, after throwing away easy to stab the garbage man's hand. This toothpick broke after two sharp ends can be inserted into the holes to avoid stabbing.
Guangdong University Of Technology
Guangzhou, China
Hailong / Ye ,
Guangdong University Of Technology
Zaojun / Li ,
Guangdong University Of Technology
Zhiheng / Feng ,
Guangdong University Of Technology
Yaxiang / Miao,
Guangdong University Of Technology