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+

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