Pilot FriXion Refills 77332, Red Erasable Gel Ink, 0.7mm Fine Point, Pack of 3. Fits 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.