Robotic Dragon Bank KitA BUILD IT YOURSELF COIN BANK: Kids ages 8+ can construct their own mechanical coin bank that's shaped like a dragon guarding a treasure chest! AUTHENTIC SCIENCE LESSONS: Learn about electrical conductivity, gears, and other mechanisms as you build and use your bank. When you place a metal coin in the dragons mouth, it completes the electric circuit and the dragons wings flap and its jaws shut as the coin is stored safely in the treasure chest.