The Schneider® Topball 850 Rollerball Refill features a conical tip made from wear-resistant stainless steel that promotes comfortable and striking writing. Replacement refill for the Schneider® Topball 811 and fits many other European-sized ink pens. Writes in approximate line width 0.5 mm, Black ink. Box of 10 refills. Made in Germany. 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.