The ergonomic rollerball with fountain pen ink for (learning to) write at school. All the benefits of a fountain pen and rollerball combined in one unique pen for children. Thanks to its unique design, cramps and prematurely tired fingers while writing are a thing of the past, allowing children to enjoy (learning to) write at school more. For children aged 6 and up. Ensures a relaxed writing posture, prevents hand cramps. Firm grip thanks to the anti-slip grip zone. Clean writing results, doesn't leak, drip, or scratch. Easily refillable with STABILO EASYoriginal refills in blue (erasable with an ink eraser), red, or black. Each refill has a new nib. Glides very easily over paper thanks to the plastic rollerball tip. The pre-formed grip zone intuitively guides the child into the correct writing posture. Line width M 0.5 mm