---
product_id: 592490374
title: "Thames & Kosmos Spy Labs Secret Message Tools, Detective Toy with Invisible Ink Pen for Exchanging Confidential Messages, Toys to Develop Problem-Solving Skills, Age 8+"
brand: "thames & kosmos"
price: "19.78 DT"
currency: TND
in_stock: false
reviews_count: 5
url: https://www.desertcart.tn/products/592490374-thames-and-kosmos-spy-labs-secret-message-tools-detective-toy
store_origin: TN
region: Tunisia
---

# Boosts problem-solving skills 2-in-1 invisible ink pens Durable metal tin case Thames & Kosmos Spy Labs Secret Message Tools, Detective Toy with Invisible Ink Pen for Exchanging Confidential Messages, Toys to Develop Problem-Solving Skills, Age 8+

**Brand:** thames & kosmos
**Price:** 19.78 DT
**Availability:** ❌ Out of Stock

## Summary

> 🕵️‍♂️ Unlock the secrets of spycraft—because every millennial manager deserves a little mystery!

## Quick Answers

- **What is this?** Thames & Kosmos Spy Labs Secret Message Tools, Detective Toy with Invisible Ink Pen for Exchanging Confidential Messages, Toys to Develop Problem-Solving Skills, Age 8+ by thames & kosmos
- **How much does it cost?** 19.78 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/592490374-thames-and-kosmos-spy-labs-secret-message-tools-detective-toy)

## Best For

- thames & kosmos enthusiasts

## Why This Product

- Trusted thames & kosmos brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready Out of the Box:** No assembly or batteries needed—just grab your pens and start your secret mission instantly.
- • **Invisible Ink Mastery:** Write secret messages that vanish and reappear only for your eyes—perfect for covert communication.
- • **Sleek & Sturdy Design:** Comes in a compact, durable metal tin that’s as stylish as it is practical for on-the-go espionage.
- • **Hands-On Detective Experience:** Engage in immersive spy play that sharpens critical thinking and perseverance.
- • **Perfect Gift for Curious Minds:** Ideal for ages 8+, this kit inspires STEM learning through fun, interactive detective challenges.

## Overview

The Thames & Kosmos Spy Labs Secret Message Tools kit includes two invisible ink pens that let users write and reveal secret messages, all housed in a durable metal tin. Designed for ages 8 and up, this no-assembly, battery-free set promotes problem-solving and critical thinking through hands-on spy-themed play, making it a perfect educational gift that blends fun with STEM learning.

## Description

From the manufacturer

Review: Don’t waste your money - This is incredibly overpriced for what it is. It’s basically 2 pens and a tiny bit of paper. It claims it’s for ages 8 and up but requires heat to use. Incredibly disappointed and a waste of money.
Review: Fun - Bought this as a gift .they seemed to enjoy it!

## Features

- Warning:Not suitable for children under 8 years. For use under adult supervision
- Warning:Only for domestic use
- Send Secret Messages: To be a top detective, you need more than just a sharp mind—you also need the right tools. Our kit allows you to communicate secret messages that will be visible only to you and your trusted companion
- Fun Learning Resources: Share covert messages with your partner using ink that vanishes and reappears, readable only by both of you! With the secret pens, you can write messages that become invisible once they dry
- Comprehensive Model Kit: Each invisible ink pen can be used to write a secret message as well as reveal any covert message written by the other pen. The kit also includes tips and tricks for writing other secret communications
- For Age 8+: Suitable for kids aged 8 and above, this science kit is a great gift for any child with an inquisitive mind. The model kit comes packed in a sturdy metal tin
- Enhance Problem-Solving Skills: Our Spy Labs range of products allows kids to assume the role of a detective and take risks, experiment, problem solve, and even understand the value of perseverance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BS4GZS3S |
| Age Range Description | Kid |
| Best Sellers Rank | 390,270 in Toys & Games ( See Top 100 in Toys & Games ) 67 in Detective Toys & Sets |
| Brand Name | Thames & Kosmos |
| Colour | Red |
| Customer Reviews | 4.0 out of 5 stars 72 Reviews |
| Educational Objective | Reading |
| Global Trade Identification Number | 10814743017723 |
| Included Components | 2 secret pens, brush, petri dish, and notepad, manual |
| Indoor Outdoor Usage | Indoor |
| Is Assembly Required | No |
| Item Dimensions | 10.9 x 3 x 7.4 centimetres |
| Item Type Name | Toy Detective Gear |
| Manufacturer | Thames & Kosmos |
| Manufacturer Part Number | 548013 |
| Material Type | Plastic |
| Maximum Age Recommendation | 1188.0 |
| Minimum Age Recommendation | 96.0 |
| Model Number | 548013 |
| Number of Players | 1 |
| Operation Mode | Manual |
| Power Source | Hand-powered |
| Size | M |
| Supported Battery Types | No batteries required |
| Theme | Detective, Spying |
| UPC | 814743017726 |
| Unit Count | 1.0 count |

## Images

![Thames & Kosmos Spy Labs Secret Message Tools, Detective Toy with Invisible Ink Pen for Exchanging Confidential Messages, Toys to Develop Problem-Solving Skills, Age 8+ - Image 1](https://m.media-amazon.com/images/I/81OcTSItcEL.jpg)
![Thames & Kosmos Spy Labs Secret Message Tools, Detective Toy with Invisible Ink Pen for Exchanging Confidential Messages, Toys to Develop Problem-Solving Skills, Age 8+ - Image 2](https://m.media-amazon.com/images/I/81ZmrQQFkFL.jpg)
![Thames & Kosmos Spy Labs Secret Message Tools, Detective Toy with Invisible Ink Pen for Exchanging Confidential Messages, Toys to Develop Problem-Solving Skills, Age 8+ - Image 3](https://m.media-amazon.com/images/I/81iIum+qegL.jpg)
![Thames & Kosmos Spy Labs Secret Message Tools, Detective Toy with Invisible Ink Pen for Exchanging Confidential Messages, Toys to Develop Problem-Solving Skills, Age 8+ - Image 4](https://m.media-amazon.com/images/I/61HnLojEa+L.jpg)
![Thames & Kosmos Spy Labs Secret Message Tools, Detective Toy with Invisible Ink Pen for Exchanging Confidential Messages, Toys to Develop Problem-Solving Skills, Age 8+ - Image 5](https://m.media-amazon.com/images/I/71A-8H9bAAL.jpg)

## Customer Reviews

### ⭐ Don’t waste your money
*by N***A on 15 January 2026*

This is incredibly overpriced for what it is. It’s basically 2 pens and a tiny bit of paper. It claims it’s for ages 8 and up but requires heat to use. Incredibly disappointed and a waste of money.

### ⭐⭐⭐⭐⭐ Fun
*by M***T on 16 March 2026*

Bought this as a gift .they seemed to enjoy it!

### ⭐⭐⭐ Detective game
*by N***U on 14 April 2026*

I bought for my knees who likes to be detective . You need another player to play this .

## Frequently Bought Together

- Thames & Kosmos Spy Labs Inc: Secret Message Tools Exchange Confidential Info w/Secret Pens | Essential Tools & Tricks of The Trade from The Detective Gear Experts for Young Investigators Medium
- Thames & Kosmos Spy Labs Inc: Fingerprinting Kit Identify, Collect, Analyze Fingerprint Evidence | Essential Tools and Tricks of The Trade from The Detective Gear Experts for Young Investigators
- Thames & Kosmos Spy Labs Inc: Secret Codes and Ciphers Learn How to Make & Exchange Coded Messages! | Essential Tools & Tricks of The Trade from The Detective Gear Experts for Young Investigators

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-18*