**Feature** Genuine Noodlers Quality 4.5 oz. Eyedropper Bottle w/FREE Pen & Black Light Dragon Catfish GREEN Highlighter Ink Safe for use in Vintage and New Fountain Pens Made In U.S.A. Noodler's Ink is 100% made in the USA from cap to glass to ink. Archival quality ink in large 4.5oz. bottle comes with a free eyedropper fill highlighter pen. Dynamic fluorescent， highlighter ink is partially bulletproof， and fully water-resistant when dry. It is wise to store the pen lying down with the cap on to extend the life of the felt feed.