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Helical Key / Key

Helical Key

Helical key is a key that you can carry on a key ring easily.It changes the normal idea of key and the special thing about it is the key ring wides into the key and not the contrary。It guides a easier life style and efficiently save energy.

University

Ningbo Institute of Technology, Zhejiang University

Ningbo Institute of Technology, Zhejiang University
Ningbo, China

Kejie Hu,
Ningbo Institute of Technology, Zhejiang University

Hui Wang,
Ningbo Institute of Technology, Zhejiang University

Mengqian Yu,
Ningbo Institute of Technology, Zhejiang University

Shuainan Chen,
Ningbo Institute of Technology, Zhejiang University