Joycover 24 PCS Invisible Ink Pen with UV Light for Kids, Spy Pens and Notebook，Birthday Party Favors for Kids 4-8, School Prize Goodie Bag Stuffers, UV Pen for Secret Message Escape Room

These were a fun present for my son's classroom over Christmas. A little unique gift for the kids. Booklets were a little small but they can write on any paper with the pens. Pens worked great as did the light.

Perfect for birthday party goodie bags. Only 1 pen in the set didn't light up but we had extra so it wasn't a big deal.

I got this for my son's class halloween party and I know some families don't do halloween. So I did detective themed bags and these are cool!

Purchased for my son’s birthday goodie bags. I love the notebooks had mini activities in them along with blank pages. Would definitely purchase again!

These were the main part of the favor bags for a detective themed kids birthday party. They were great! I heard no complaints about pens not working, and my kids had fun writing invisible messages--it's nice that they can use them on any paper so even though the notebook is short, they can keep using the pen on other pages. The little activities in the notebooks were fun. They were short, but that's not surprising at the price point.

We used these as Valentines for my son's class. The kids loved them! There was only 1 in the box that the light didn't work.

Gave to kids’ classmates. My kids played with theirs for a while. Tiny book, but you can write on any paper and use it.

These were high quality and made for a lot of excited and happy kids. The pens have lasted a few months too which is impressive.