Build and configure a digital lock to create the most secure coin bank ever.
• Learn how to wire a circuit and install an alarm buzzer for maximum security.
• Challenge friends to bypass the buzzer and crack the lock if they can.
• Detailed assembly instructions included.
• Recommended for ages 8 years and up.
• Challenge your child's imagination with 4M toys and kits.
• 4M educational toys cover a wide range of educational subjects and include science kits, arts and crafts kits, robotics kits, and more.