Noodler\’s 54th Massachusetts ink features strong archival properties and water resistance, making it ideal for permanent document writing. Ink Characteristics Size: 16oz Color Family – Blue Bulletproof (UV resistant bleach resistant, etc.) Archival and Fade Resistant Forgery Resistant (impervious to lasers, alcohols and solvents) Water Resistant Ideal for Security Documents Noodler\’s Bottled Ink are all hand made 100% in the USA in small batches with unique labels often matching the inspiration of the color. With a wide range of colors and ink properties, good performance can be found on all kinds of writing papers, including those not considered fountain pen friendly. The ink color you receive may differ from the one pictured. Because Noodler\’s inks are hand made in small batches, the colors can vary slightly from one bottle to another. Because Noodler\’s Inks are filled to the brim, we recommend care be taken when first opening to avoid ink spillage.