Be a professional locksmith. Build a giant visible padlock.
The visible pin tumbler shows how a key opens a lock.
You can create your very own key by changing the key teeth around.
Ages: 5 and over
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.
Your valuables are under safe protection.
24cm x 22cm x 6cm
Age 8+
Don’t let anyone sneak into your room undetected! Build your own Intruder Alarm to keep out those pesky brothers & sisters! And while you are at it, explore how a magnet sets off this cool build-your-own intruder alarm.
It’s a great project for exploring how a magnetic switch works in an electric circuit.
Simple construction of the alarm box is required.
Requires 2 x AAA batteries.
Ages 5 and over.
Only 2 left in stock
In stock
Only 2 left in stock
Only 1 left in stock
Only 2 left in stock
Only 2 left in stock
Only 1 left in stock
Only 2 left in stock
