Invisible Ink UV Marker

Go invisible! 

Are you looking for a better way to write your secret messages?

For those of you who like the secret agent approach to geocaching, we offer the Ultraviolet Felt-tip Marker from our friends at Markal. This marker produces an ink that is invisible under normal light, but glows brightly under a UV or black light!

Looking to read your secret messages?  Click here to see our CacheFire UV Light. 

Some features: 

• Permanent, durable, fast drying and lead-free
• Xylene free
• ClipGrip Cap
• Marking temperature range from -50°F to 150°F

Pen with cap measures about 5.75 inches.