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Not misplaced buttons / Button

Not misplaced buttons
Not misplaced buttons

In daily life, people often have the hole in the wrong button,how to solve this situation?

This is a design that can prevent people from the wrong buttons, buttons from top to bottom are a large
and a small shape. Correspondingly,the button hole for a small shape,it is effective to avoid the problem
that the hole in the wrong button.

University

Nanchang University

Nanchang University
Nanchang, China

Shankai TU,
Nanchang University

Shuo LI,
Nanchang University

Jun LIANG,
Nanchang University

Jiajun ZHOU,
Nanchang University