Create fabulous artwork that glows in the dark with Glow in the Dark Pens. Draw your image or write a secret message, expose it to light for a couple of minutes and then when you turn out the lights, your message or artwork glows!!! Fabulous for inspiring creativity especially around Halloween. Note: Please allow glow in the dark ink to dry overnight. 2 x 10ml pensSuitable from age 6 up WARNING: Glow in the dark ink does not wash out. Please wear old clothes and protect all surfaces.