The Schneider Slider 755 XB Giant Refill features Viscoglide® technology for extraordinarily smooth, gliding writing. ISO format G2. The refill writes with an extra broad (XB), or approximately 1.4 mm line width. Waterproof according to ink standard ISO 12757-2, the ink dries quickly, even on smooth paper, and is smudge-proof when highlighting it later on. The wear-resistant stainless steel tip helps prevent grinding across the page and guarantees the large ink supply can be fully used without smearing. Compatible with the Schneider Plug+Play System ballpoint pens, including Rave and Xite, as well as many other pen types. Includes one (1) black ink ballpoint pen refill. 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.