Schneider K 20 Icy Medium Ballpoint Pen, Box of 20, Black (132001) Schneider is a leading international brand, with writing instruments designed and engineered in Germany, distributed in the US exclusively by Stride, Inc. Retractable ballpoint pen has a transparent barrel and writes over 4000 feet; Medium line width; box of 20; black ink Wear resistant stainless steel tip Refill is replaceable with other Schneider Plug&Play refills, including advanced Viscoglide ink refills Documentary, light resistant and waterproof according to ISO 12757-2