Our safe to use, ethanol-based inks pre-loaded in a marker pen for ease of use. Another product ideal for nightclub security and re-admission purposes. Can only be seen under UV conditions. Set of 3 pens - 1 blue, 1 yellow and 1 red. Our skin inks are safe to use on the skit but not suitable for use around the eyes or mouth We recommend you test on the back of the hand before applying to other body areas. Available 1st Nov 2009