Pilot Frixion Ball 4, (4 Colours) Gel 0.5mm Multi Pen ERASABLE INK
(Black, Red, Blue, Green INK) LKFB-80EF-B
QTY: 1
* Four colours of FriXion erasable gel ink in one pen body
* Its thermosensitive ink turns invisible when rubbed with the special friction "eraser" built into the top of the pen.
* The ink will also disappear if exposed to other sources of heat or friction, so we advise against using these pens to address envelopes or leaving anything written with them in a hot car.
* Interestingly though, erased FriXion ink reappears if exposed to temperatures below (-10°C)
* Refillable with Pilot FriXion Ball Slim Multi Pen refills