DirectGlow Blacklight Reactive Invisible UV Ink Marker Pen Large 3 Section Blue Red Yellow for Ultraviolet Security Secret Messages Drawing Glow Party Favor (3 Markers with 3 Blacklights)

I’m a child therapist and sometimes it’s difficult for my clients to express what’s going on. I love to use these to get them to open up. I tell them to write something to me and I write something positive for them to discover (e.g., You’re amazing!). It helps them feel good about themselves while giving them one step away from verbalizing something that’s hard to say. Works every time!

I liked all the lights worked but one of the markers seems a little dried out, rest seem okay.

Wasn't impressed. Not that it was alot of money, they just didn't work right. 2 didn't work at all

Love the bright colors

These are great for sending my daughter messages that only she can see when she uses her light. She wrote on me and it turned out looking really cool under the black light. Like invisible tatoos that glow under the black light.

Naic

cool idea but not that bright and comes off too quick... really wanted to mark my stuff with it to catch thief's but it wipes off to easy...

I bought these for my son's glow bday party. The kids loved decorating their white t-shirts but unfortunately the markers barely showed up under the black light. I suggest using neon highlighters instead.