4E's Novelty 12-Pack Invisible Ink Spy Kit with UV Pens, Mini Notebooks & Goodie Bags for Kids Party Favors
4E's Novelty 12-Pack Invisible Ink Spy Kit with UV Pens, Mini Notebooks & Goodie Bags for Kids Party Favors
With 12 invisible ink pens that each have a built-in UV light, 12 mini notebooks featuring secret codes, and 12 colored plastic goodie bags, this bulk set from 4E's Novelty gives you everything needed for a spy-themed party or activity. Designed for kids who enjoy secret messages and detective role-play, these pens write clear ink that only appears under the UV light on the cap, and they double as temporary tattoo markers on skin.
What's in the pack
- 12 invisible ink pens with UV light caps
- 12 mini notebooks printed with secret codes
- 12 colored plastic goodie bags for favors or storage
How does the invisible ink work
Each pen writes with a clear ink that dries invisible on most surfaces. To read the message, turn on the small UV light built into the pen cap and shine it over the writing. The ink glows under ultraviolet light, revealing the hidden text or drawing. The same effect works on paper and on skin, making the pens suitable for temporary tattoo play.
Can these pens be used on skin
Yes. The ink is safe for temporary use on skin, so kids can draw or write secret messages on their arms or hands. The UV light reveals the design, just like on paper. After play, the ink washes off with soap and water.
Quick specs
| Brand | 4E's Novelty |
| Writing instrument form | Ballpoint pen (invisible ink) |
| Color assortment | Pens (multicolor), notebooks (multicolor), bags (multicolor) |
| Ink color | Clear / UV-reactive |
| Age range | Kid (commonly ages 8–12) |
Common questions about this set
How many items come in the pack?
You receive 12 pens, 12 notebooks, and 12 goodie bags – all in one bulk kit.
Do the notebooks have anything special on them?
Yes. Each mini notebook contains printed secret codes, adding to the spy theme and giving kids puzzles to solve or messages to decode.
What are the goodie bags for?
The colored plastic bags work well as party favor bags, treat containers, or storage for the pens and notebooks. They complete the ready-to-give party set.
Tips for using this spy kit
Hand out one pen, one notebook, and one bag to each child at a party or event. Let them write secret messages to each other, then reveal with the UV light. The pens also work as temporary tattoo markers – draw a design on skin, show it under UV, and wash off later. Keep the UV light pointed away from eyes.