Pilot FriXion Synergy Knock0.4mmBlack Ink3 Replacement RefillsLFSK-14-B LFRF-143-B

Pilot Friction Synergy Knock【0.4mm】【Black Ink】【Set of 3 Refills】 The next in the Friction series of the erasable gel ink ballpoint pen FRIXION BALL KNOCK, "FRIXION SYNERGY KNOCK". Equipped with a synergy tip that achieves a fine and smooth writing experience. The special rubber erases the ink when rubbed. Do not use on important documents or addresses that should not be erased. Do not place in direct sunlight or in high-temperature areas. Ink becomes colorless at temperatures above 60°C. At around -10°C, erased writing may reappear. Do not use on surfaces other than paper. Depending on the type of paper, such as thermal paper, or the characteristics of printed materials, erasing may not be effective. If the eraser has dirt on it, it may dirty the paper. Please clean off any dirt before use.