Thanks to the erasable thermo-sensitive ink: Write, Erase and Repeat! Effectiveness and writing comfort thanks to the unique fluidity and ultra-softness of the Pilot gel ink. Ergonomic, with a grip to ensure a perfect hold control. Refillable product more economical and respectful of the environment. Made of at least 50% of recycled plastic material (excluding refills and product packaging) in order to help save our planet's resources. Writing width : 0.35 mm Tip size : 0.70 mm