Noodler's Ink Refills X-Feather Black 4.5 oz w/ Free Pen Bottled Ink - ND-19819
Noodler's X-Feather 4.5 oz Eyedropper Bottle w/ Free Pen is designed to resist feathering especially on cheap papers. It is billed as archival and 100% bulletproof. Classed as Anti feather bulletproof eternal forgery and water-resistant whey dry. Safe for use in Vintage and New Fountain Pens.