Noodler's Ink has gone to great efforts to keep up with hindering the potential new tools of modern forgers by creating The Warden's Ink, Bad Green Gator. It is designed to give your writing a "lifetime sentence". It is "bullet-proof", pH neutral, water-based and resists UV light. This ink is in the same line of inks as Bad Blue Heron, Bad Belted Kingfisher and Bad Black Moccasin. 3 oz bottle. 19064.