The Schneider One Business Rollerball features the innovative Super-Flow-System and Ultra-Smooth tip to guarantee consistent ink flow from start to finish for the best writing experience. Waterproof according to ink standard ISO 14145-2, the large ink reservoir has a level indicator to ensure every drop of ink is used. Cap-off ink does not run dry even if the cap is removed for 2-3 days. Ergonomic, rubberized grip zone provides a secure hold for relaxed writing. The cap has a sturdy, high-quality metal clip that fits neatly on either end of the barrel. Writes in an approximate 0.6 mm line width. The One Business Rollerball is produced CO2 neutral. Includes one (1) green ink rollerball pen. Made in Germany, Schneider products are manufactured to the highest quality and environmental standards that have earned awards and accolades across the company's 80+ year history. Known for reliability, functionality and sustainability, Schneider Writing Instruments are available at excellent price points to empower creativity and pen to paper. Each thought is worth writing down - the Schneider way.