Pilot FriXion Eraseable Gel Ink Pen Refills Red Pilot FriXion Eraseable Gel Ink Pen Refills, Fine Point, Red 0.7m/m Ink, Pack of 6. Pilot Frixion Ball 0.7 Mm Refill (6 Refills comes in separate/single pack of per refills). Strickly not recomended for signatures,examination papers,cheques or official documents where writing needs to be of a permanent nature.