Here, you’ll get a 2-pack of ink refills for the Ballograf Rondo Erase. This ink is heat sensitive and means that it disappears when heated. With the help of a special eraser on the pen, the paper and ink heat up when it is erased by the friction that occurs. The ink becomes invisible but can come back if the paper is cooled down by, for example, being placed in the freezer. * Made in Sweden * Medium tip * Pack of 2 **About Ballograf** Ballograf is a Swedish pen manufacturer founded in 1945, its pens are renowned in Sweden for their classic design and lifelong guarantee. **See all the Ballograf products we stock here**