This Pelikan 4001 ink in a glass bottle is suitable for many fountain pens with piston mechanisms or converters. The quality ink from Pelikan ensures a smooth application of color and a good ink flow. The long-lasting color of the 4001 ink is another essential feature of this writing ink. This brilliant red ink cannot be erased or corrected. Since the beginning of its history, Pelikan has been producing ink and can therefore look back on more than 180 years of experience in the production and development of high-quality ink. Quality made in Germany.