Noodler's Black Waterproof Fountain Pen Ink - Bulletproof,3 ounce
Bulletproof is a Noodlers term for waterproof, bleach proof, lightfast, and archival qualities. Noodler's Black Waterproof Fountain Pen Ink - Bulletproof Genuine Noodler's Quality Fountain Pen Ink for Vintage or New Pens