It has a thin jaw on the head, an O-ring is installed, and the ball-point pen tip and nozzle are combined to have a ball-point pen body nearly half the size of a normal ball-point pen body. It is a mini ballpoint pen, characterized in that it includes a protective cap. As the size of a ballpoint pen is about half that of other ordinary ballpoint pens, it is very easy to carry and can be carried anywhere at any time, so it can be used when urgently needed.
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