Invisible Ink Pen with UV Light | Secret Ballpoint Writing Pen

Write in Secret — Reveal with Light!

Keep your messages hidden from prying eyes with this clever Invisible Ink Pen with built-in UV light. Perfect for kids, students, office fun, and anyone who loves a touch of mystery — write anything invisibly, then simply shine the UV tip to reveal your hidden message instantly!

Why You'll Love This Invisible Ink Pen

• Truly Invisible Writing: Ink is completely invisible to the naked eye under normal lighting conditions.
• Built-In UV Reveal Light: The pen features an integrated UV light tip — no separate torch needed. Just flip and shine to see your secret writing glow.
• Writes on Almost Anything: Works on paper, skin, wood, metal, fabric, walls, and more — the creative possibilities are endless.
• Anti-Counterfeiting & Security Use: Great for marking personal belongings, documents, and valuables discreetly.
• Lightweight & Portable: Compact 132mm body slips easily into a pencil case, pocket, or bag.
• Fine 0.7mm Tip: Smooth ballpoint tip for precise, controlled writing every time.
• Battery Included: Powered by 3 built-in AG3 button cell batteries — ready to use right out of the package.

Product Specifications

• Color: Silver
• Material: Plastic shell
• Total Length: 132mm (~5.2 inches)
• Tip Size: 0.7mm ballpoint
• Battery: Built-in 3 × AG3 button cell batteries
• Country of Origin: Made in Mainland China

Ideal For

• School kids & students — secret notes & games
• Office use — discreetly marking documents or belongings
• Party games, treasure hunts & escape rooms
• Anti-counterfeiting & property labeling
• Creative arts, crafts & journaling

What's in the Box?

1 × Invisible Ink Marker Pen with UV Light (no retail box)

Note: Please allow ±1–3cm variance due to manual measurement. Actual color may vary slightly from screen display.

Explore More Great Writing & Craft Supplies

• 0.38mm Fine Nib Calligraphy Fountain Pen | Gold Trim Gift
• 1-Inch Round Dot Label Stickers – 500/Roll, 10 Colors

For more information on safe ink and writing instrument materials for children, visit the U.S. Consumer Product Safety Commission (CPSC).

Learn more: Ballpoint pen

Frequently Asked Questions

Q: How does the invisible ink pen work?

A: The invisible ink pen uses a special UV-reactive ink that is completely clear under normal light. When you shine the built-in UV (ultraviolet) light on the writing, it glows and becomes readable. Simply write your message, let it dry, and use the UV tip at the other end of the pen to reveal it.

Q: What surfaces can I write on with this invisible ink pen?

A: This pen can write on a wide variety of surfaces including paper, skin, wood, metal, cloth, and walls. It's versatile enough for school projects, creative crafts, security marking, and more.

Q: Do I need to buy batteries separately?

A: No! The pen comes with 3 AG3 button cell batteries already built in, so it's ready to use straight out of the packaging.

Q: Is this invisible ink pen safe for children to use?

A: The pen is designed for general school and office use. However, as with all small stationery items containing batteries, adult supervision is recommended for young children. Keep out of reach of very small children to avoid accidental ingestion of components.