By lighting with a laser light, you draw your image on the surface, and it will glow in the dark. It will disappear over time and you can make a new one again. This miraculous luminescent ink is great fun for young and old.
Artworks of your children without unnecessary clutter!
The package also includes a UV lamp / pen /, which you can attach to your keys
TIP: you can also shine a light from your mobile phone on the T-shirt
material: 100% cotton