1、High Security: The 4 digit security combination allows you to use up to 10,000 combinations between different numbers, secure and configurable design making you can change your password at any time. 2、Cutting Resistant: Sturdy and flexible steel cable with high security, strong cut resistance and PVC coating to help prevent scratches and remains durable. 3、Portable Design: 1.5m/59.05in cable is long enough for different users, the self rolling design makes it easy to carry, giving you a convenient using experience. 4、Easy Using: The easy to restart 4 digit number combination allows you to design digital combinations with ease, so don't worry about losing your keys and forgetting to carry them with you. 5、Application: You can lock 2 bikes together or lock your bike to trees, gates, fences, railings, thick poles and other places.