KidzLabs Spy Science Stem educational set, 8+ years, 4M Have fun communicating secret messages with your friends like spies do! Send Top Secrets in Morse Code, Invisible Writers, Secret X-Ray Note Sheets and more... Learn the common secret codes used in the world of espionage. Features : - This kit introduces kids to the intriguing world of espionage, with secret communication and evidence recording practices, all in the name of fun. A real spy training kit, this kit will teach kids to code with hidden secret messages and communicate in many different, top-secret ways. - The eight useful spy tools include: Super Spy Diary, Secret X-Ray Notes, White Invisible Message Pen, Black Message Developer, Secret Code Library, Morse Code Shutter Torch, Cipher Wheel and Identification Card Super Spy. - Science toys like this product encourage imagination and critical thinking in children. 4M educational toys cover a wide range of educational topics and include science kits, arts and crafts kits, robotics kits and more (each purchased separately). Box size: 22 x 17 x 6 cm Presentation : 8+ years