Schneider black color one hybrid n 0.5 mm pen line width f 10 pcs/box. Rollerball with hybrid needle tip for pleasantly soft writing. Line width approx. 0.5 mm, writing color black, waterproof according to ink standard iso 14145-2. The innovative super-flow-system guarantees consistent ink flow from start to finish. The large ink reservoir has a level indicator and every drop of ink is used. The cap-off ink does not run dry even if the cap is removed for 2-3 days. The one hybrid n has a high-quality metal clip and an ergonomically rubberized surface that provides a secure hold for relaxed writing. Ideal for school, office & home. Color: black. 10pcs of one hybrid n pen in box.