• Replaces HP 63 black (f6u62an) and HP 63 color (f6u61an) with Stealth ix invisible UV fluorescent blue ink. Stealth UV content is completely invisible until exposed to UV light source.
• Add a layer of cutting-edge and uniquely specialized security & protection to anything that can be passed through a printer.
• For best results both the black and the color cartridge would need to be replaced. Use Stealth ix invisible ink enhanced paper for a High quality Print out.
• Use Stealth ix invisible ink display lights for the best viewing experience.
• These ink cartridge work with: Stealth HP 1112iX, 2130iX. HP deskjet 1112, 2130, 2132, 3630, 3632. HP ENVY 4512, 4520. HP officejet 3830, 4650.

Stealth inkjet cartridges and printers allow users to add invisible \"stealth\" content (text, graphics, barcodes, watermarks, signatures, etc.) to any pre-printed or blank document for a new advanced level of protection & authentication. Add invisible text or logos to any document (including checks) with your inkjet printer & then verify them with any UV display light. This ink cartridge works with: stealth HP 1112ix, 2130ix. HP Deskjet 1112, 2130, 2132, 3630, 3632. HP envy 4512, 4520. HP Officejet 3830, 4650.