SCStyle Invisible Ink Pen 28Pcs with UV Light Magic Marker for Secret Messages, Writing Information for Birthdays, Easter, Halloween, Christmas Gifts for Students

I'm a teacher and this pen has a great use for games and riddles in the classroom. Kids love these type of activities and the pens function really well to boost creativity in designing tasks. They are easy to use.

Excellent quality and value priced

Great fun for kids many different colors … affordable price. Long lasting writing.

These work great at first, but the ink doesn’t last long. I bought them for my students, and most were not working after a couple weeks. I bought two packages, and I only had one marker that was a dud straight out of the package. Make sure you put the cap on tightly or the ink will dry up immediately.

Works well. Kids love the invisible writing and use of the black light to show wheat they write

Bought as party favors, these were quite the hit. They hide the message and the light lasts.

The pens are packaged very well- Each pen came with a battery plug and was in its own little bag. Every single pen worked (both light and ink). The lights do not have a flip switch- instead you have to keep the button pushed for the light to come on. The button is very easy to push and will be no problem for smaller kiddos. Personally- I prefer that so the light is not accidentally flipped and the batteries run out. Time will tell if this will last longer. The ink dries quickly so the glow will fade but the purpose of these is fast, “invisible” writing so I’m not sure that is much of a problem.

Several pens didn’t work, but most were ok