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the ruler easy to be pick / Ruler

the ruler easy to be pick

It is difficult to pick up a ruler on the table or from the ground when it has fallen. So we cut off a triangular pyramid at an angle of the ruler. In this way, we can pick up the ruler easily by pressing the inclined plane of the ruler.

University

Guangzhou Academy of Fine Arts

Guangzhou Academy of Fine Arts
Guangzhou, China

Tao Xu,
Guangzhou Academy of Fine Arts

Luanqi Li,
Guangzhou Academy of Fine Arts

WeiminXu,
Guangzhou Academy of Fine Arts

MinghanCai,
Guangzhou Academy of Fine Arts