Pilot Frixion Ball Clicker Pen, Erasable – 0.7mm, Black

The Pilot FriXion Pen has thermo-sensitive ink that can be erased by friction and reappears at low temperatures. It is a retractable pen with a yellow indicator for extension.

• The pen writes smoothly and erases without a trace.
• The ink reappears when the temperature drops below –10 C.
• The description claims the pen should not be left in hot cars or exposed to conditions with a lot of friction.