Melissa and Doug Secret Decoder Set

Clues and secret messages decoding set containing 3 activity books, one for each of the 3 types of "espionage technologies": ring for decoding, magnifying glass for finding secret clues, the pen that writes secret messages. Package dimensions: 25.5 * 6.5 * 2.5 cm. It is a fun and engaging set for beginner spies who will be able to "perfect" themselves in various espionage techniques.