PILOT PEN-Frixion Ball Erasable Gel Pens. Erase and rewrite repeatedly without damaging documents! Thermo-sensitive gel ink formula disappears with erasing friction. This package contains eight 5-3/4 inch long cap top pens. The color of the ink matches the color of the pen: black, blue, red, green, purple, pink, orange and brown. Imported. Blitsy Tip: use these pens to write out appointments and dates in your day planner! If something changes, you can easily erase it and rewrite it elsewhere. Because we all know that there's nothing worse than ruining a page of your beautiful ban.do planner with a huge scratch-out mark.