NPW USA Secret Message Pens Writing Set Novelty
Product Description
NPW USA Secret Message Pens Writing Set Novelty
- Set of two pens with invisible ink
- Cap of each pen contains a powerful 'blacklight' UV beam
- Requires 3 AG3/LR41 batteries (included)
- Perfect for trading secrets with your best friend
- Entertain friends with hilarious NPW gifts and gadgets that will crack them up
The invisible ink in this pen contains special brightness ultraviolet viewable compounds. Completely invisible in normal light, the secret messages can only be revealed by the beam of the UV blacklight. This beam consists of ultraviolet energy close to the visible spectrum of light which causes particles within the ink to fluoresce, illuminating the message. It's always time to have a laugh with NPW whether it be a birthday, office prank, sleepover, party or just because you want a mega LOL. NPW lives and breathes cheekiness. Entertain friends with hilarious gifts and gadgets that will crack them up! There is never a dull moment with NPW in your life!
Technical Specifications
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