The original Sheaffer clickable clip is back We’ve revived a popular Sheaffer invention with the Reminder ballpoint pen. A master of design ingenuity, it features the Sheaffer clickable clip that was first introduced in the 1960s. Simply click the bottom of the clip to propel and activate the ballpoint, and click the top when you’re finished writing to lock the tip into the retracted position. The smart design prevents the clip from attaching to a pocket, lapel or sheets of paper whenever the writing tip is activated. So it guards against contact with even a hint of ink – reminding you to click it before you clip it.