Legami Hippo Erasable Gel Pen TWIN Pack Say goodbye to crossing out mistakes or reaching for the correction tape: with the Legami Hippo Erasable Gel Pen, your notes and drawings will always be perfect! The special gel ink vanishes with the friction of the special eraser on the cap. It can be rewritten immediately in the same place. Erasable gel ink, 0.7 mm tip, black ink.