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The design is fun and subtle enough to pass as a Jim Bond accessory - in the eyes of most children - as such being great for a kids' party favour bag or the kind of Xmas stocking filler most men REALLY love from an understanding partner. My problem with it is that it's impossible to write a message while shining the UV to see what you've written. So fun but impractical.
Verified purchase: Yes | Condition: New
As expected and in full working order. It's a ballpoint pen using UV ink, with a button operated UV torch on the other end. I've had fun writing secret messages, revealing the hidden markings on bank notes, and testing some free sunglasses to see if they really blocked UV light. The construction is plastic with a metal clip and metal end cap. The pen side pulls off to access the pen cartridge. The torch end unscrews to reveal the batteries (three LR41 cells inserted negative side first). It came with batteries installed. The packaging had Italian titles, English product notes and the model number HY-0812. Be careful when you open it in case the spare batteries provided are loose (I almost lost mine under the sofa). Also, don't forget to remove the small protective plastic cap protecting the end of the ballpoint - it won't write otherwise! My only concern is with the UV ink cartridge. I don't know what type it is, or where I could buy a replacement from. Guess I'll just have to buy a new pen when the time comes.Read full review
Verified purchase: Yes | Condition: New
I wanted a secret marker to mark a new bike for my grandson. This was not suitable, but it should have had more detailed information in the description I feel in that it was not suitable for ????? It may be that I am being oversensitive, and the product is ideal for many applications but not for what I wanted it for it is now useless to me.
Verified purchase: Yes | Condition: New
great invisible ink spy pen., ideal for kids who want to keep their secrets in their diaries, or simply play spy games.
Verified purchase: Yes | Condition: New
Very poor quality. It’s as if the ink has dried up. There’s a difference in being invisible to not working properly. Would not recommend
Verified purchase: Yes | Condition: New