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IC card bunch / IC card

IC card bunch
IC card bunch

It troubles a lot to manage many IC cards when we have many. We make a hole on the card to make it convient to take as a bunch of keys. It is an easy way to take several cards without harming its function.
Since the chip and coil are just around the card, it will not influnce the function of the card with a hole


Zijingang Campus of Zhejiang University

Zijingang Campus of Zhejiang University
Hangzhou, China