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Thumbtack is widely used in various places. From the survey, we found it too hard and difficult to set the thumbtack into the walls or wood which is stiffness when we use it generally. This phenomenon make everyone troubled.
According to the research of user behavior, the first reaction of us was turning the pins When pushpin nails did not enter. But the normal thumbtack needle is smooth. No matter how to rotate It’s no avail.
According to this phenomenon, After improving the design of the pin, we make the thumbtack needle in a spiral shape, we only need to twist the pin when we are using, and it can be nailed easily.
FAN SHI ZHONG, STONE FAN, SHIZHONG STUDIO