Opticz 12 Pack Invisible UV Blacklight Reactive Ink Markers with 4 UV Lights

Our Opticz brand UV blacklight reactive invisible ink markers use high quality invisible UV ink. Perfect for identification marking, wall decoration, and other stealthy security uses. Perfect for metal, glass, plastics, paper. Totally invisible, won't wash off easily, and is only visible under blacklight. Colors included are 4 blue, 4 yellow, and 4 pink along with 4 mini UV pinch lights. These are the markers you want for semi-permanent, invisible marking. These markers can be used for: Glow parties, body art, event tickets, industrial coding, security printing, coupons, raffle tickets, inventory control, advertising, and more! Can also be used on: Aluminum, ABS, acrylic, rubber, cellulose, acetate, Formica, nylon, polystyrene, and polyethylene. Fine tip for precision application. Ink is non-toxic, fast-drying and non-transferable. Prolonged exposure to sun light or continuous high powered UV exposure may cause fading over time.