How a combination lock works

Fig 1Combination lockDrag a wheel sideways to turn it381

14 parts

Made of:

Did you know?

Watch: the dials will turn until all three gates line up.

hundreds 1

tens 8

ones 3

🔐

Find the secret code

Turn each dial with ▲ and ▼.
Tap 👀 to look inside at the gates.
When all 3 gates line up, tap 🔓 Pull.
Tap any part, or use ◀ ▶, to zoom in and read what it does. Look inside makes the head transparent and opens the wheels.