Premium large metal refill with Viscoglide® technology for exceptionally easy and gliding writing. ISO format G2. Writing color black. Line width medium (M). Document-proof according to ISO 12757-2. The wear-resistant stainless steel tip guarantees that the large paste supply can be used completely and without smearing. The writing dries quickly - even on smooth paper - and remains smudge-proof even when you mark it with highlighters. Suitable for all Schneider ballpoint pens with a plug + play system and many other makes.