Pilot 0.7 mm Fine Frixion Pen Refills (P1A77330W1FP), 3 Count,Per Pack For A Total Of 6 Refills All Together Refills fit Pilot FriXion Ball and Clicker erasable Gel Ink Pens FriXion ball pens have a unique Thermo-Sensitive Gel Ink Formula that disappears with erasing friction. Rewritable-erase and rewrite repeatedly without damaging documents - No wear or tear! Fine point 0.7mm. Writes smooth, erases clean.