Schneider Slider 755 Medium Ballpoint Pen Refill, 1.0mm, Blue Ink, Box of 10 (175603) 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, Haptify, Pulse Pro, Epsilon, and Epsilon Touch; universal Parker style refill fits many other brands Viscoglide ink technology for easy, gliding writing; blue ink; Ink will not smear and dries quickly; box of 10 1.0mm Medium writing line features waterproof, light resistant and documentary blue ink, according to ink standard ISO 12757-2 Durable stainless steel metal tip; extra large ink capacity writes for 3.75 miles