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spin ruler / Schreibwaren

spin ruler
spin ruler

Paper is too long and your ruler is always too shirt.
Sometimes you really have to draw a stright and long line. But long ruler is hard
to carry at your side all the time.

A convex and a180°-groove make the ruler easy to spin half circle. You can keep drawing the stright line.

It will also incline on the plane naturally.Make your ruler easier to pick up


National Kaohsiung Normal University

National Kaohsiung Normal University
Kaohsiung, Taiwan


Zhang Jingyi

Zhang Jingyi
taichung, Taiwan