Invisible UV Marker
Our permanent UV Marker Pen leaves just a clear (invisible) mark when viewed under ordinary light. Under UV (blacklight) though, the writing is plainly seen, and glows a pale blue. Writes on any surface. Ideal for all security uses such as marking hands of customers at large events. Great for writing secret notes that only someone else with a UV light can see. Ideal for marking your Stereo, TV or other valuables. These are permanent markers and will write on pretty much everything.... metal, plastic, paper, etc.
Invisible UV Marker: $4.00