Thank you for viewing. This is a dial-type bicycle lock. The wire is 6mm thick and 65cm long, a size that's just right for everyday use. It's simple and easy to use, perfect for a little bit of bicycle security. ■ Product Specifications • Type: Dial type • Wire diameter: 6mm • Length: 65cm • Condition: Unopened, unused I think I received this at a ward office event or something. I found it unopened while organizing my house, so I'm listing it for sale. How about it for your security measures? Please consider it.