The Spy Labs Invisible Ink Pen and UV Light kit by Thames & Kosmos, featuring a pen and a UV light used for writing secret messages and revealing hidden clues. The packaging shows a hand holding the pen and a glowing UV light illuminating a message marked as "Top Secret." Suitable for ages 8 and up, it offers a fun and interactive experience for young aspiring spies.
Spy Labs Invisible Ink Pen and UV Light by Thames & Kosmos. The kit includes a sleek pen designed for writing invisible messages, along with a UV light to reveal them. Ideal for young detectives and budding spies, this tool enhances imaginative play and problem-solving skills.
Thames & Kosmos Spy Labs Invisible Ink Pen, a sleek black pen designed for secret writing. Comes with a UV light for revealing hidden messages, perfect for spy-themed activities or creative projects.

Spy Labs: Invisible Ink Pen and UV Light

Thames & Kosmos SKU: 53313 Barcode: 814743017719

$12.99

As a detective, you always need the right tools when you are on the hunt for evidence or reading secret messages. Ultraviolet light helps you uncover many hidden clues.

Exchange top secret info with your friends and fellow agents using this high-tech device. The pen uses a special ink that only becomes visible under ultraviolet light, like the one emitted by the flashlight on its opposite end. You can also use the UV light to find other objects and materials that glow.

  • Write and decipher invisible secret messages and correspondence
  • Use the UV-ink pen to write invisible messages and then reveal them with the UV flashlight
  • Explore other UV-reactive substances like the security features on banknotes
  • Packed in durable metal tin

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