Pilot FriXion Ball 4 4 Color Gel Multi Pen - 0.5 mm - White

Enjoy four colors of Pilot's beloved FriXion erasable gel ink in one pen body! Like magic, 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 14° F (-10° C), like if it is placed in a freezer—it's like magic ink!
Enjoy four colors of Pilot's beloved FriXion erasable gel ink in one pen body! Like magic, 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 14° F (-10° C), like if it is placed in a freezer—it's like magic ink!

Pilot FriXion Ball Knock 4-Color Gel Ink Multi-Pen, White LKFB-80EF-W

FriXion Ball Multi Pen - 0.38mm - Clear Barrel – Yoseka Stationery

Pilot Frixion 4 Colour Erasable Gel Pen 0.5mm White Barrel

Pilot FriXion Ball Knock 4-Color Gel Ink Multi-Pen, White LKFB-80EF-W

A cap-type Frixion ballpoint pen that can erase writing. One pen has 4 colors, so is handy for carrying around with you! This ultra-fine type with a 0.5mm pen tip is suitable for fine writing in notebooks etc. As the ink is made colorless through frictional heat, there are no eraser dregs and you can rewrite in the same place multiple times.