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笔的戒指 / ring-pen

笔的戒指

It can be like a ring wear to your pen , help you finish drawing arc and round, and still can help you determine the orientation of the line. Give your pen a ring, let the circle is no longer a difficult!

University

Zhengzhou lnstitute of Aeronautical lndustry Management

Zhengzhou lnstitute of Aeronautical lndustry Management
zhengzhou, China

Design

Zhengzhou lnstitute of Aeronautical lndustry Management

Zhengzhou lnstitute of Aeronautical lndustry Management
zhengzhou, China

Lipeng Zhan