Invisible Ink Pen with UV Light – Secret Writing Ballpoint
Write in Secret — Reveal with UV Light
This clever invisible ink ballpoint pen lets you write hidden messages that are completely undetectable to the naked eye — until you shine the built-in UV light over them! Perfect for secret notes, fun games, labelling personal belongings, anti-counterfeiting, and creative projects at home, school, or the office. Made in Mainland China.
Why You'll Love It
- Truly Invisible Ink — Writes clear on paper but disappears on drying; only visible under UV light
- Built-In UV Light — No separate lamp needed; the UV pointer is right on the pen cap
- Versatile Writing Surface — Works on paper, wood, metal, fabric, walls, and more
- Lightweight & Portable — Slim 132mm plastic body slips easily into a pocket, bag, or pencil case
- Fine 0.7mm Tip — Smooth, precise ballpoint for neat, controlled writing
- Great for All Ages — Kids love secret messages; adults find it useful for discreet labelling and security marking
Specifications
| Material | Plastic shell |
| Color | Silver |
| Total Length | 132 mm |
| Tip Size | 0.7 mm ballpoint |
| Power Source | Built-in 3 × AG3 button cell batteries |
| Origin | Made in Mainland China |
Package Contents
- 1 × Invisible Ink Ballpoint Pen with UV Light (no retail box)
Note: Please allow ±1–3 cm measurement tolerance. Actual color may vary slightly from screen to screen due to display settings.
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Frequently Asked Questions
Q: How does the invisible ink pen work?
A: The pen uses a special UV-reactive ink that dries clear and is invisible under normal light. When you shine the built-in UV light over your writing, the ink fluoresces and the text or markings become clearly visible. Simply replace the cap and use the UV pointer to reveal your hidden message anytime.
Q: Do I need to buy batteries separately for the UV light?
A: No — the pen comes with 3 AG3 button cell batteries already built in, so it is ready to use straight out of the packaging. No additional accessories are required.
Q: What surfaces can I write on with this invisible ink pen?
A: The invisible ink ballpoint writes on a wide range of surfaces including paper, wood, metal, fabric, walls, and more, making it highly versatile for labelling, secret messages, and creative projects at school or at home.