This pen has everything that you will use on a daily basis. It has a black pen for jotting quick notes, a red pen for editing, a mechanical pencil for non permanent writing, and a white-tipped stylus for your PDA or Palm phone. Its size is perfect too: 5 1/4 inches by 3/8 inch with a slightly oversized rubber grip for comfort and easily fits inside a back or shirt pocket, secured with a flexible metal clip.