Feature: Oki Pace Mark 4410 Black Ribbon (15M Characters) Oki Pace Mark 4410 Black Ribbon (15M Characters) Oem Ribbon Black 15000000 Characters Frixion Writes Smoothly Just Like A Regular Gel Ink Pen But Allows You To Erase Like A Pencil At Any Time. Unlimited Do-Overs Allow You To Write, Erase, And Re-Write Repeatedly Without Damaging Your Documents. The Eraser Tip Won'T Wear Down Or Leave Crumbs Behind. With Frixion, No One Will Know It Wasn'T Perfect The First Time. Frixion'S Smooth, Mistake-Free Writing Benefits Teachers, Parents, And Professionals Alike. Frixion Erasable Gel Ink Pens Are Available In A Variety Of Colorful Inks And Point Sizes That Are Great For Making Lists And Staying Organized. Complete Sudoku And Crossword Puzzles Without A Mistake Or A Hole In The Paper. Keep Calendars Neat, Even When Appointments Change. Students Can Use Frixion To Take Notes, Edit Papers, And Complete Homework