Fountain pens allow that pen and ink feel wherever you go! Fountain pens use a non-waterproof ink to prevent clogging. Choose from standard writing nibs, calligraphy nibs and sketch style nibs. Pens from Lamy, Pelikan, Sheaffer, Rotring and Stypen use cartridge refills available in a broad range of colors or can be filled out of a bottle by using a convertor.