Using this invisible ink pen, only can you see it until shining it over where you wrote. Very interesting and bring fun for kids.

Harmless and flavorless ink, You can write everywhere:T-Shirts, paper, skin and any surface.

The inks is durable but washable. very safety to use.

The magic pens have the UV light installed in the cap so you don'for t need to buy a spare light,

which also comes with battery in it, very convenient to use.