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Two-in-one SIM / SIM

Two-in-one SIM
Two-in-one SIM

With a two-in-one SIM , you can change the mode from a general sim to a micro one very easily . If you have an iphone , you only have a cut and push at first use and a push next time to get a micro SIM from the general SIM.When you want to use a general mode,please keep them togather.

University

Hunan University

Hunan University
Changsha, China

Design

Hunan University

Hunan University
Changsha, China

gong kai zhang hongbin