Pilot FriXion Point Erasable Gel Pens, Extra Fine Point, Blue Ink, Dozen Box (31587) FriXion erasable technology now with a precision point tip for precise, clean lines Erase and rewrite repeatedly without damaging documents Unique Thermo-Sensitive gel ink formula disappears with erasing friction Box of 12 extra fine point pens with blue ink Refillable - Refill model #77341 and #77344 sold separately