This invisible ink pen is used to detect, identify, and return stolen property in the event of a burglary. Each invisible ink marking pen contains invisible permanent ink. It's safe and reliable and easy to use.

This products marks on all surfaces including glass, paper, wood, plastic and cloth and is invisible to the naked eye. The ink is visible under ultraviolet light for easy identification by police, detectives, and pawn shops. Marked items are hard to fence and evidence of guilt is apparent when thieves are caught.

Use your driver's license number along with your state abbreviation to mark on your property. This is an easily recognizable number to law enforcement agencies and is the most consistent mark of identification for personal property. Complete the process by keeping a log of what you have marked so you have a record of inventory.

• For Home and Office Equipment
• Marks permanent on all surfaces
• Won't damage or deface property
• Visible by UV light

The Detecta Mark Anti-Theft Set includes 2 pens that write with permanent, invisible ink which can only be seen under ultraviolet (UV) light and a stylish UV pen light. With this set you can mark your valuables with the UV pen that police can use for identification if stolen and recovered. It can also be used to check for counterfeit money or as a spy toy for children to write secret messages. The UV flashlight measures 5 inches long and requires 3 LR-41 batteries (included, along with an extra set of 3).