If you give up on tablet writing, you can replace the tip to convert the pen to an old-fashioned roller ball.

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But if the friction created by those connections was greater than the friction between the tabletop and the roller ball, the mouse would skip.

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As he was saying goodbye, Derga gave the president a pen, a cheap roller ball he had used to write letter to his son in Iraq.

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Murphy scored from second on an infield hit after shortstop Daniel Descalso could not handle Wright's slow roller and the ball rolled free.

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The Supersports is produced in a limited edition of 630 ball point pens and 630 roller pens, a number based on the horsepower of the powerful Bentley Supersport model.

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