Invisible Ink Pen, Spy Pen with 9 PCS Mini UV LED Keychain Flashlight, Disappearing Ink Magic Pens with Black Light Markers for Secret Notes, Fit for Christmas Halloween Holiday Gifts (9 PCS)

Kids had a great time! Can still see the ink initially, have to let it dry a bit to be "invisible".

Fun to use but also helpful when secretly marking an item. Great price too.

These are very fun for the price. I got them for a treasure hunt puzzle game with a group of children. The lights aren't very bright, but I was pleased that I got several for the price (and I already have a UV flashlight so it wasn't a huge loss that they aren't the best). The markers were all full of ink--none were dry. They show up nicely under the lights, especially the pink. My biggest complaint is the blue appears to be pretty much identical to the yellow? At first I thought maybe there was a mistake and the blue marker got filled with yellow ink when they were made, but the blue pen is also the most visible pen under natural lighting, so it seems to be different. All of them are a bit visible until they dry, but if you look closely you can still sort of see the blue marks hours later. I may have gotten a bad one. The other pens are great though! I definitely recommend these (especially if others are getting better blue markers), they're lots of fun.

Good quality

I really like how vibrant the colors look under the black light. And how invisible they are without it. I’ma school teacher, so I’ve used it for mystery writing activities and prefer fun activities.

Granddaughter loved it

If you're getting this for art, or drawing on yourself, go for it, it amazing, but if you want to draw in a book, or blacklight your journal three with it, don't. It bleeds through paper pretty easily. If you want to do that, I'd recommend erasable highlighters. It takes several minutes to fully dry, it's fun and decently bright. For what it is, it's worth the money long as you know it'll do what you're looking for

Bought for eBay store to lower electronics returns. Writes great on paper like items, but doesnt have that sharpie quality that can write on metal objects, it just wipes off.