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Multi-purpose pen / stationery

Multi-purpose pen
Multi-purpose pen

This pen can be used as a compass or measure the length of a straight line within a certain range. There is no need to carry a compass and a long ruler; the pen tip can be stretched like a lipstick, and the tip of the pen can be retracted when not in use, making it easier for people to carry it, and people don’t have to worry about losing the cap of the pen.

University

Jiangsu University of Technology

Jiangsu University of Technology
Jiangsu Changzhou, China

Yijian Zhang,
Jiangsu University of Technology