Pilot FriXion Ball Knock Retractable Gel Pen Refill

It's filled with Pilot's unique thermo sensitive gel ink that flows smoothly and consistently. The heat generated by friction when rubbing the paper with the rubber tip of Pilot Frixion pen turns the ink invisible.

Pilot FriXion Ball Knock 0.5mm - Blue Black

20pcs/box DS Gel Ink Refill for Retractable Gel Pens Needle/Bullet

Pilot FriXion Point Knock Gel Pen Refill - 0.4 mm - Black - Pack of 3

Pilot FriXion Ball Knock 0.7mm - Light Blue

Generic New 10pcs 0.38mm Gel Ink Ballpoint Pen Refill @ Best Price

PILOT FRIXION CLICKER - This pen combines the ease of a retractable click pen with Pilot's heat erasable thermo-sensitive gel ink. No wear or tear so

Pilot Frixion Erasable Pens 0.5 Ball Clicker Gel Ink Retractable Pen - Extra Fine Point - White Barrel - Black Ink - Pack Of 3 Pens And 2 Refills

Pilot Frixion Ball Knock Retractable Gel Pen 0.5mm- 1pc

Pilot FriXion Clicker Erasable & Retractable Gel Ink Pens, Fine Point, Blue Ink, 8 Count (16402) : : Office Products

Pilot FriXion Ball Knock Refill 0.7mm - Red

PILOT FriXion Erasable Gel Pen LFBK-23EF and Refills BLS-FR5 10 Colors 0.5mm Bullet