Rotring Tikky 0.7 Mechanical Pencil with eraser

Pelikan rollerball pen, with blue ink and 0.7mm thick nib. Rollerball writing is similar to that of a pen. They produce the most ink compared to other types, they are comfortable to write, they don't leave gaps, but they can smudge. Not suitable for low quality paper and for left-handers. The ink lasts less than ballpoint and gel types. Erases without residue and without damaging the paper.