Pilot Frixion Clicker Retractable Erasable Rollerball 0.7 mm Tip - Black, Single Pen NEVER cross out again with FRIXION CLICKER, the retractable erasable pen from Pilot! Cleanly write, delete (FriXion It) and rewrite - all with the same pen. Thermo-sensitive ink Refillable 0.7mm tip gives a 0.35mm medium line