Protect your stuff or it's gone. We don't care how nice the neighborhood looks. Use the ABUS 1200 Combo Lock. It's 3.5-feet long and resists prying and cutting for maximum protection wherever you park. This serious chain is wrapped in a durable cover to keep your bike's finish safe and the combination can easily be set to any number you want. Hint: don't use 1234.

- Diameter: 4mm