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The idea comes from the ancient books "bamboo".It is in Slips structure based on deformation formed tra
pezoidal Pen containers.
When used to roll it up,wit
h pen container snaps ab
ove card.When not in use t
o expand it in a bag inside, easy to carry.
韦, 太
中国成都, China
韦, 太
中国成都, China
Tai Wei Kai Cui Bingkun Zhang Yao Chen