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Rollerball pen / Rollerball pen

Rollerball pen
Rollerball pen

The refill may accidentally
damage when in use , so
the whole refill has to be
thrown, which causes the
source waste. The pen cap
can conveniently resolve
this problem.Just stuck the
pen point in pen cap slot
and pull out effortlessly,
then the pen point and ink
tube will be separated easily.
Replace a undamaged pen
Point and then the smooth
writing can be performed
Again.

University

South China Agriculture University

South China Agriculture University
Guangzhou, China

Design

South China Agriculture University

South China Agriculture University
Guangzhou, China

Yusong Cao Xin Luo Shu Ming Kuang Yong Ming Yuan