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Thumbtack / Thumbtack


Tacks are used everywhere in our daily life.But it has many problems when we use them.For example,the tacks may hurt your fingers while using.It is not easy to pick them up.And rolling is also problem.This new kind of tacks can solve these problems.When we do not use the tacks,the heads will be wraped by the tacks.when we press the tacks,the head will come up graduallyuntil the whole head come out.the bayonet ean fasten the head.If we press the bayonet,the part of tacks will be flipped to wrapthe head.The tacks areoval column,so it is not easy to roll.And the tacks has anti-skid marks,so it is easy to press.


Fuzhou University

Fuzhou University
Fujian Xiamen, China

Diancheng Wang,
Fuzhou University