Invisible Ink Pen, Spy Pen with 3 PCS Mini UV LED Keychain Flashlight, Disappearing Ink Magic Pens with Black Light Markers for Secret Notes, Fit for Christmas Halloween Holiday Gifts (3 PCS)

Worked well for what I needed them for.

This is so cool! We used for a DIY escape room and it worked great! The kids loved it

Great little fun way to write messages. The colors do not "pop" out really they are all kind of the same. The blue did not look blue at all so I gave it 4 stars but you could see it under the black lights just did not really look blue. If you are looking for the specific colors these are not going to give you what you are looking for. If you are looking for pens to write messages that can only be seen under a black light they will do the trick.

These worked well for notes from Santa on Christmas morning. Kids love the magic of invisible ink.

Got it for my 6 year old as a gift and he loves it. It’s fun to use. It writes like your typical marker. It’s good quality and very durable. They seem to dry pretty quickly too.

We did a scavenger hunt and this worked marvelously! We absolutely loved the invisible ink - it showed up so well! Pros: - The pens work great - The lights actually show the invisible ink. - That are durable and last well - They are just so fun!!! Cons: - The marker tips are on the thicker side so writing small is not an option. - The ink does run if it gets moist or wet. This is a great price for the awesome item you get - I would highly recommend purchasing it!

One has to be careful of the surface that is written on. Smooth dark plastics will reveal the writing in regular light. On the right surface, it is hidden well.

5 for fun, 2 for quality. Fit-for-purpose: I wanted to encourage my grandson to write letters. He doesn't have email (yet) and letters are just FUN. Writing "secret messages" in invisible ink is fun. This will do, for starters. Quality: blue and yellow look alike. The yellow must be drying out or simply doesn't flow as much as the blue (flows almost too much - looks like ink from a thicker point but isn't). Pink is pink, and lines are fine, like yellow - sometimes a little harder to see. The little keychain lights work well and appear to have replaceable batteries, though I suspect the originals will last longer than the ink in these pens. I've ordered another brand to compare, as these are "almost, but not QUITE" what I'd hoped to stuff stockings with. That said, they'll do. I plan to keep them.