Invisible Ink Pen with UV Light

excellent item. works as described in the description. good quality, especially for the price. fast shipping, received quickly. good communication from the seller. highly recommended. would buy again.

So the ink is invisible and it does glow under blacklights, though I will say the ink is all over the pens. If you see it or not, so be careful when you write, try cleaning each pen off first then you should be alright. The lights aren't the best but I have a big blacklight I use to light the paper up while I write and draw with the pens

The marker invisible ink pens are cool but they smudge! So I was looking for an actual pen, these are perfect. The black light is a little bit weak (and hard for me to hold down constantly) but the ink is incredible, like holy crow incredible. Going to buy a small goose neck black light lamp and I’ll bet set! :))

My son had me order these pens. He uses them and feels that they work great! When you look at the page you can tell something on there but you can’t read what is written. Once you shine the light from the pen on it, then you can read it.