4E's Novelty 12-Pack Invisible Ink Pens with UV Lights, Mini Notebooks & Goodie Bags – Spy Party Favors for Kids

This bulk set from 4E's Novelty includes 12 invisible ink pens with built-in UV lights, 12 mini top secret notebooks, and 12 white goodie bags. Each pen writes with clear ink that stays hidden until the UV light on the cap reveals the message. Designed for kids who enjoy spy games, secret codes, and creative play, this kit works well as party favors, classroom rewards, or stocking stuffers for children ages 8–12.

What's in the Set?

• 12 invisible ink pens (ballpoint style) with UV light on the cap
• 12 mini top secret notebooks with pre-printed secret codes
• 12 white plastic goodie bags for filling with treats or small toys

Each component comes in a quantity of 12, making it easy to hand out at a birthday party, school event, or spy-themed activity. The pens also work as temporary tattoo markers on skin, letting kids draw hidden pictures that appear under UV light.

How Do the Invisible Ink Pens Work?

The pen writes with a clear, quick-drying ink that disappears on paper. To read the message, press the button on the pen cap to turn on the small UV light. The light makes the ink glow slightly, revealing what was written. The ink is not permanent and washes off skin with soap and water. For best results, use the pen on light-colored paper (included notebooks work well).

Ideal for Parties and Group Gifts

With 12 identical sets, this kit removes the guesswork of assembling party favors. Each child gets a pen, a notebook, and a bag to carry their loot. The spy theme fits escape rooms, detective birthday parties, or classroom Valentine exchanges. Teachers often use these as treasure chest rewards or prizes for completing assignments.

Product Specifications

Can the Pens Write on Skin?

Yes. The product description notes that the ink works as a temporary tattoo marker. Kids can draw on their own or others' skin, and the design stays invisible until exposed to UV light. It washes off easily with soap and water. Avoid use near eyes or on sensitive skin.

Are the Notebooks Reusable?

The mini notebooks come with pre-printed secret codes on some pages. They are not reusable in the traditional sense, but kids can use the blank pages to write their own invisible messages. The paper is standard weight, suitable for the invisible ink pen.

What Age Group Is This Best For?

While the set is recommended for ages 8–12, younger children may also enjoy it with adult supervision (especially because of the small UV light). The concept of invisible ink appeals to a wide range, but the small parts and button battery (if any) in the pen cap make it unsuitable for children under 3.