5-Digit Code LockThe bicycle lock has an advanced 5-digit code lock, so up to 100,000 possible codes make it nearly impossible to crack. Easily set up and reset your own personal number combination Cable locks are great for protecting bicycles, scooters, mountain bikes or other items from theft. Chain locks retain their shape even at high temperatures Long chain to hold multiple bikes together. Digital locks don't require a key. You no longer have to worry about losing your bike keys The chain lock adopts a high-strength zinc government lock core, which is smooth and rust-free, durable and resistant to violent damage. Using a polyester protective cover can not only effectively protect the chain and make it less likely to rust, but also better protect the bicycle. Note:1. Please allow some imperfections due to manual measurement.2. Due to different monitors, colors may vary, please understand.If your shipping information is incorrect, your order will be incorrect.