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Safety of watermelon knif / watermelon knif

Safety of watermelon knif
Safety of watermelon knif

The fruit shop which sell watermelon, need cut many watermelon. Since the watermelon rind is too thick, we need cut out it by press the back of knife heavily, it will cause the hand hurt. If using new design, can take out the blue rubber cover which hide in the knife as following image, the it will protect your hand.

University

SouthChina University of Technology

SouthChina University of Technology
Guangzhou, China

Hongchao Zhou,
South China University of Technology

Jun Sun,
South China University of Technology

Xiang Liu,
South China University of Technology