The Schneider® Gelion+ Gel Refill features ultra quick-drying, smudge-proof ink. The high performance gel offers an extremely light, fluid writing sensation equally suitable for both right and left-handers. The innovative formula offers extended durability compared to conventional gel refills. Waterproof according to ink standard ISO 27668-2. Refills are compatible with the Schneider® Plug+Play Refill system and many other brands of refills in G2 format. Ball diameter of 0.7 mm writes in light-resistant ink. Ink color: Black. 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.