Schneider Slider 755 XB Pen Refill, Blue, Box of 10 (175503) Schneider is a leading international brand, with writing instruments designed and engineered in Germany, distributed in the US exclusively by Stride, Inc. Compatible with the Schneider Rave, Epsilon, and Epsilon Touch; universal Parker style refill fits many other brands Advanced Ink Technology for a smooth writing experience Waterproof blue ink, documental and light resistant according to ink standard ISO 12757-2; Ink will not smear and dries quickly; box of 10 Durable stainless steel metal tip; extra large ink capacity writes for almost three miles