Invisible Ink Pen 28Pcs Latest 2023 Spy Pen with UV Black Light Magic Spy Marker Kid Pens for Secret Message and Birthday Party,Writing Secret Message for Easter Day Halloween Christmas Party Bag Gift

When the pens worked they were fine, but with about half the pens the lights didn't work or were very faint and flickered. Some of the ink leaked when the caps were off and got all over your hands. Good thing you could only see it when one of the UV lights worked. If you are giving these out as party favors and don't want a bunch of disappointed kids, I would look elsewhere.

Some of the pens did not work. I use these pens as a rewards for students at school.

Gave to my daughter's preschool teacher for their prize box. Sooo cool! Something different and oh so fun!

Most of the previous ones I have tried the ink was not good. This one looks like it will last more than a day.

Great pen for the price

The ones that work were a huge hit for my son's birthday! Unfortunately about half a dozen the light doesn't work, but thankfully we had enough for the kiddos that were there.

These markers are a great idea for kids party favors! I loved that they provided both boy and girl colors!!

We loved the pens for a party but about 1/3 of them did not work. The ones that did worked great!