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Locking handle / Locking handle

Locking handle

This certainly takes us a lot of time and energy,and more nervous maybe.
With this locking handle,it's easy to tell which toilet is available in every angle you stand.When people get in and lock up the door,the handle outside has already been pulled into the door,visible but not usable.That why it makes us easier to find a toilet.


Yanshan University

Yanshan University
Qinhuangdao, China


Yanshan University

Yanshan University
Qinhuangdao, China

Bei Wang Chuang Wang Qianying Zhao