4M - Detective Spy Science Secret Message 4M-03 295 Brand 4M located in Hong Kong is recognized educational toys since 1993. Developing various creative, innovative, high quality products based on science build its way around the world. Mandatory safety in the design of products through regular testing in the EU and the US. With games children will develop their curiosity, what is learned through study. Discovery, design and production through trial. Enjoy communicating through secret messages with your friends, like the real spies. Write secret messages with invisible markers to be read must use special lens. In the spy kit includes everything needed to conceal their secrets! Suitable age: 8+ years
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