Pilot Frixion Ball Gel Pen - Fine Pen Point Type - 0.7 Mm Pen Point Size - Blue Gel-based Ink - Blue Barrel - 1 Each 31551 Pilot FriXion Ball Gel Pen - Fine Pen Point Type - 0.7 mm Pen Point Size - Blue Gel-based Ink - Blue Barrel - 1 Each FriXion Erasable Gel Pen allows you to erase and rewrite repeatedly without damaging documents Thermosensitive, gel ink formula disappears with erasing friction of rubber plug eraser on the pen Unique, thermo-sensitive gel ink formula disappears with erasing friction Ink is thermosensitive and disappears with erasing friction