Description Kaweco Paradise Blue fountain pen ink is a bright, vibrant shade of turquoise. The cardboard box contains 6 standard short international size cartridges that will fit most fountain pens that accept international cartridges. Kaweco inks were created in Austria by experts trained in the specialty niche of ink chemistry, and fountain pen users who prefer the expressive flow of a fountain pen will really appreciate this superior ink. Having trouble deciding between colors? Use our Ink Comparison Tool to quickly and easily view different colors side by side. We offer Free Shipping on all orders over $59 for US customers, and for orders over $250 for our Canadian customers.