- Invisible Ink Seen Only With Long Wave Uv Light
- Invisible Paper Marking
- Hand Marking For ReEntry
- Invisible Hand Stamp Ink Bright Blue
Invisible Ink Black Light Reactive. Bright Blue With UV Light. Non Permanent. Great For Paper Marking, & Hand Stamping. Not A Tattoo Ink. Not For Printer Cartridges. Includes 9 LED Black Light To View Ink.