Cryptography is an ancient art that’s been used throughout the ages to create secret messages. Nowadays, it’s mostly used for digital password and security encryptions, but Cryptic Code Thinking Putty® brings back the mystery. The included Glow Charger® turns the bright orange putty to a deep purple which quickly fades away-making it perfect for covert communications of all kinds. For Ages: 8+WARNING: Choking Hazard; Small Parts. Not for children under 3 years old.