The Quick Stop Chain Resettable bike lock is perfect for quickly and easily securing your bike when you're wheeling around town and need to make a stop. The combination is easy to set to the four-digit code of your choosing. The sturdy chain is 100cm in length and is made up of 4mm temper-hardened steel links with nylon sleeve protects your bike's finish when locked and prevents noisy rattling when you're out on a ride. It's a great lock for conventional and electric bikes because it offers security in a compact and easy to carry design. Now there is no excuse to get caught on a ride without a lock!