Due to the poor performance of these Chinese made Invisible Ink Pens we will not stock these anymore.
To find a better quality Invisible ink Marker Pen please view this page
Invisible Ink Pens, now available in 3 colours, are ideal for home security. The ink will stay invisible until the supplied black light, or another black light shines on them. So write your drivers license on your most personal property that can't be replaced.