Thats the second invisible pen that I buy. This one works bettter. Depending on the paper, it really makes invisible writing! The packing could be better. I intendend to give as a gift for children and the pen only comes wraped in plastic-buble. A button to turn it off also could improve the product,... Read more
It is clear to see, when using it with the given lantern. Others mean of lightining are useless. Used it in my biology and math tests. Just great.
an write in your whole body, and, yet, invisible. The writtings appears in night clubs lightinings, when using it in the body.
The ink is somewhat icchy, ... Read more
- Writes on many surfaces, including skin and wood!
- I wrote on my door three days ago and it's still there, even though a little less bright.
- Comes with it's own battery! I had to remove the foil from inside the flashlight so it would work but mine still needed some messing around to get it to work,... Read more
A fun wee pen, I bought one for my brother-in-law and he loves it, the ink appears to be water based so doesnt write well on plastic but its fine on paper card or skin. The UV LED works well to illuminate the ink The ink is faintly visible enabling it to be read, some colours of paper make it less visible ... Read more
it works just like it says it does really impresive especially to young children for this price i haven't found anything similar to my country it didn't came in the picture's package but that wasn't really a problem this one is not really a con - i think the ink may not last for a long time but i'm not ... Read more
- Works perfect!
- Battery Included
- Very light
I tried over a lot of surfaces and it was invisible all the time (some issues with plastic and glass). - The ink can be seen with a toy that my sister owns! - Looks like the ink is getting yellow by now.
- If you are expecting permanent ink, forget it!... Read more
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