You can build your own double-protected money safe by connecting a buzz alarm circuit and a simple dial lock.  Store your pocket money or top secrets inside.  No spy or burglar could retrieve the contents inside without the key and pin number.  Your treasure is under safe protection!

Learn about the intricacies of lock making with the 4M Buzz Alarm Money Safe and protect your valuables! Build your own super secure safe, protected by a security alarm, a combination lock plus a key lock. Learn about lock structure and connecting wire circuitry while building this alarmed safe. Detailed instructions included.

• Recommended for ages 8 years+.