This is for a 0.4 Synergy tip pen.
The Pilot FriXion Synergy Knock Gel Pen combines erasable ink with a clean, retractable design made for everyday writing. With a simple click of the clip, the tip extends and retracts easily, while the built-in eraser at the top lets you remove mistakes without engaging the mechanism. Writing feels smooth and controlled, thanks to Pilot’s Synergy tip, which blends the sharpness of a needle point with the stability of a conical nib for consistent lines.
FriXion’s thermosensitive ink disappears with friction, erasing cleanly without residue, dust, or wear on the eraser itself. Because the ink reacts to heat, writing may fade if exposed to high temperatures and reappear in very cold conditions, so it’s best used for notes, planning, and everyday writing rather than permanent records. Thoughtfully designed and easy to use, it’s a practical pen for anyone who likes the freedom to revise as they go.
