To fuel your spirit of invention, Waterman inks and refills have the ultimate pedigree. From the earliest days when Lewis Edson Waterman invented the first reliable fountain pen in 1883, quality and innovation have mattered. In 1936, Waterman introduced the first ink cartridge. In 1947, Waterman surprised the world by launching the Pentabille, its first ballpoint pen with 5 interchangeable colors. Whether you write with a nib, ballpoint, fiber tip or rollerball, you can always count on Waterman quality. So keep an eye on your ink level, and never run out of fresh ideas.