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The Black Knight / drainage switch

The Black Knight
The Black Knight

The black night is a convenient drainage switch designed for washbasin.It is made of foam and are connected with drainage plug by a string.When the basin is filled with water,the black night will float above water.Since the black night is connected with plug,you just need to take up floater to open the plug if you want to discharge the water so that your hands will remain untouched with dirty water.

University

Jiangsu Normal University

Jiangsu Normal University
Xuzhou, China

Xunchuan Huang,
Jiangsu Normal University