The ergonomic rollerball with fountain pen ink for (learning to) write at school. All the advantages of a fountain pen and rollerball combined in one unique pen for children. Thanks to its unique design, cramps and premature tired fingers while writing are a thing of the past, allowing children to enjoy (learning to) write at school more. For children from 6 years old Ensures a relaxed writing posture, prevents hand cramps Firm grip thanks to the anti-slip grip zone Clean writing result, does not leak, drip, or scratch Easily refillable with STABILO EASYoriginal refills in blue (erasable with ink eradicating fluid), red, or black Each refill has a new writing tip Glides very easily over paper thanks to the plastic rollerball tip Due to the pre-formed grip zone, the child intuitively adopts the correct writing posture Line width M 0.5 mm