The invisible ink pens are very popular around people, which can crest a lot of fun.People can use it to communicate secretly and hide messages.Children think that they are secret agents with these pens, lay mystery adventures and writing clues for each other. You can make secret spy messages with your friends.UV head stealth lamp pen, a magic ball pen, write cannot see, according to the light to see, can be written in white paper, clothes and so on, the best choice for student prizes.How to use:1. Unplug the insulating sheet and the circuit operates normally.2. Pick up a pen and writing on a desk .on a paper .Clothes or wall. Anywhere you want .3. You won't see anything at this time, but when you pick up the pen light and shine on the place where you wrote it, the word you just wrote will appear.Warm tips:1.Please note ink color is the same in each pen just the pen casing that is different. 2.Keep items out of the reach of children and prevent them from eating.3.Keep as much as possible in a cool, ventilated place.
Trustpilot
3 days ago
2 weeks ago
