High Quality Material Our bike lock is made of steel cables, zinc alloy and PVC, stronger, flexible and cut resistant. Reinforced zinc alloy locking head construction also improves safety.4-Digit CodeSmart 4-digit lock can set up 10000 different combination code( the factory default password is 0000). With our bike lock, you will not need to carry keys anymore.Durable & WaterproofThe bicycle lock with PVC outer layer can withstand the harshest environments, no matter high or low temperature, rainy days, the lock can be used normally.Safe And PortableThe alloy lock head and lock body are difficult to be broken or destroyed. The bicycle lock uses a serrated key insert, which is more anti-theft.Widely UseNot only a cable lock for bike or bicycle, but also great ideal for skateboards, gates, fences, grillss equipment, tool boxes, ladders, bags, suitcases, strollers, etc.