If you've forgotten your combination, or for some other reason want to get past a Brinks number lock, this tutorial shows you how to do it. All you need is a bobby pin. Slide the bobby pin down towards the lock wheels. Then spin the wheels slowly, from top to bottom. As you spin each wheel to the correct number, the bobby pin will slide down a little more. And once the bobby pin is all the way down, not only have you unlocked the lock, you've figured out the combination!