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The design for the men is portable safety hammer.
The shape and appearance the same as common watches.
you can touch to know time in normal time，triangle stands
for hours，round stands for minutes. When you in danger ，
You only need press on the crown which on the side of watch.
College of Science&Technology
Ningbo university
ningbo, China
xiaoliang zhao,
school of software technology zhejiang university
menrong hou, lian xue,
宁波麦子工业设计有限公司
lei shi
junjie feng
