Frixion Clicker Turquoise
Combines the convenience of a retractable with the incredible FriXion erasable gel ink. Erase and rewrite repeatedly without damaging documents. No wear or tear Eraser is at the top of the pen, tip is retractable by pressing clip down. Unique ThermoSensitive Gel Ink formula disappears with erasing friction. Refillable. Fine Point 0.7mm.
FriXion ink “erases” due to Pilot's exclusive thermo-sensitive ink technology. ... When rubbing, the ink heats up to over 60°C and becomes invisible. FriXion pens have a special erasing tip which allows the paper to be heated quickly without damaging it. By default, this ink is dark but when the ink is heated up, such as from the friction of an eraser, it turns clear to make it seem as if the ink was erased.