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Line projector / Writing instrument

Line projector
Line projector

How to write well organized on the white paper is always a trouble for a lot of people. It is not nice if the words are skew.
This Line Projector can be used on any paper. It will project straight line on the paper and it is easy for people to write well organized.

University

Zhejiang Sci-tech University

Zhejiang Sci-tech University
Hangzhou, China

Design

Zhejiang Sci-tech University

Zhejiang Sci-tech University
Hangzhou, China

Zhu lili;Zhu pinhui;Yao ling;Tao yuzhe