4M
Buzz Alarm Money Safe Kit
24.99
Learn about the intricacies of lock making with the 4M Spy Science Money Safe. 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.
