Magic Auto-Vanishing Ink Ball Pen (Blue Ink)

Pros: It actually does work, and disappears completely within about 3 to 4 hours. I didn't notice any significant difference after 24 hours. Came in a nice little storage case (pictured) so you don't confuse it with other pens. Looks and feels just like any ball point pen you would find in any office. It actually writes very smooth, I wish real pens would write as smooth as this pen does.
Besides the obvious signing of checks or legal documents (which I suspect there is some law against doing so) with a disappearing ink pen, It might be fun to wrote notes to someone, or for the celebrity to give an autograph to that rude fan, or make a game out of it where the instructions or even a map is drawn using disappearing ink! "This map will self-destruct in 90 minutes!"

Cons: You have to write lightly, else there will be this faint "watermark" that remains after the blue ink disappears. Also be sure sure to write on a hard surface so the fine-tip doesn't make an impression in the paper itself.

Other: Get it, it does work, and you can have some fun playing a joke on friends then leave it somewhere so someone else would take it and watch the pen thief go bonkers wondering what's going on with this pen!

Pros: - It works perfectly - The ink is gone within a few hours of writing - It looks like a normal pen: It even has "Office Gel" printed on it - The case/box is a nice bonus, although it is not of much use - The ink comes out easily, but does not spread on the paper - It's an excellent prank!

Cons: - If you press too hard, the text can be seen inscribed in the paper - Doesn't seem very sturdy

Other: It's a fun little must-have gadget, and it really does work flawlessly.

Pros: There are a few pros, but not much. I like the idea verry much, and just like always the dx price is really cheap. you can give it to someone who has forgotten it, at his exam.

Cons: it doesn't work very well. you can see the footprints(penprints) of you writing, even if the ink is gone, you probably can still read what you have written. You maybe will get a punch in the face when you borrow it when someone takes his finalexam.

Other: I shouldn't relay on this pen, if you are seriously trying to trick someone i don't think you should use this pen. but for it's price it's really fun to write some things down and see that it is disappeared in 3~4 hours.

Pros: -The ink almost disappear totally (you almost cannot see that the paper that something was wrote on the paper!) -It seems a normal pen. Nobody will expect the ink will disappear. -The case in which comes the pen is really elegant.

Cons: -If you push too much when writing then the preassure mark will keep in the paper after disappearing the ink. Be careful! -The ink disappearation is slow but after one day it has disappeared!

Other: If you want a disappearation ink pen just buy it! For me a mus-have item!

Pros: Just as advertise: ink dissapears after a few minutes (some users say hours, for me it took only 25 minutes). I think is just a prank item to have fun with friends

Cons: I don't see any disadvantages. Maybe for some users it takes a long time for the ink to dissapears. Depend on the expectations you have.

Other: It's a fun item. If you're one of those persons who like to play jokes with gadgets like this you need this one on your collection.

Pros: Its really magic. If you use it on normal paper it will really disappear in about 3 hours. We had a lot off fun on it at my work. No more problems if a package disappears? Who signed for it? nobody? Our postmen came back in the afternoon. You forgot to signature the parcel. No problem i used the same pen again. You schould have seen its eyes when he saw that it was gone again next day. Its also very nice if you dont like your new contract. The put it in a draw, but without your signature.If you very very very look a second time you can see the old writing just a little. But if you dont know, you dont see anything.
Nice gift box

Cons: its so like a normal pencil that you maybe use it while its not your plan. (i mean its that good!)

Other: good price, really works. You will have a good laught for just a few dollars.

Pros: I bought two of these "spy pens". They look and feel like any other gel pens. They are great pens to write with.

Cons: The red velvet lining in both the plastic presentation cases have some water stains.
I wish they came with black and red ink as well.

Other: A good buy! I would not hesitate to recommend or purchase them again.

Pros: So I have to say that this pen does work. When you write something down, after a 30 minutes or so it will start to disapear. After an hour or so the writing will be gone. So if you think you can use this, buy it! It simply does what it says.

Cons: Well like i said before, the pen works so there are no big cons attached. Well maybe that it disapears a bit too quick for me but that's not a really big problem. Maybe the price could go down a bit too. Also you can still see a subtle mark where you wrote something after the ink disapeared but you'll have to look closely. It's also not a big problem

Other: If you're looking for a pen with disapearing ink then i think this will be a good buy

Pros: - Amazing build quality, this looks just like any other high quality pen.
- The pen IS fine tipped point, so it isn't hard to write it. The ink doesn't drip that often either.
- I personally think the ink disappearing time is very good for using in pranks in school.
- I also used to pen to practice some cursive.
- The container that came with the pen was really unnecessary (considering it might have contributed to price), but I didn't really mind it.

Cons: - Nothing, maybe it could have been $1 cheaper, but I like this pen. It was a really nice buy.

Other: It's a great buy, you should definitely purchase it, if you're looking to practice some cursive, doodle, or pull pranks.

Pros: very nice build, looks like a normal pen. I kinda thought i got cheated off a normal blue pen.hahah It's 0.5mm tip is great, but not very strong. One of mine didnt survive a drop off my table. And also, the blue ink is....different, it's darker than usual. Almost black. But i like black, so tht's ok.

Cons: the plastic box is kind of useless, but i guess that's the only way to protect it. Oh, yea it dissappears in 20mins. At the 10min mark, anyone can spot that it's disappearing. I originally wanted to use it for useless notes my teacher asked my po copy down, but the dissapearing time made it impossible. Also sometimes, it leaves a mark on the paper, i think it depends on the quality of paper you're using.

Other: good prank pen! Buy2! Incase one spoils. Like me :)