1PCS Anti Theft Bicycle Lock Chain，Lock 4 Digit Security Resettable Combination.

Security Design：High quality metallic helmet lock, thicken alloy steel wire, strong cut resistant to 0.138inches/3.5mm in diameter, anti-theft and preventing scratches. Easy to Set Up：The little helmet lock has a 4 digit code up to 10000 unique combinations, very easy to set your desired code by turning the lock collar as the user manual, quick to secure and remove, easy to customize combination. Retractable：Stretch the cable lock up to the maximum of 63inch/160cm. When you rest, lock the cable lock and helmet together wrapped conveniently around the motorcycle or bicycle at will. Portable and Lightweight：Our bike cable locks are light about 100 grams, very lightweight not bulky but quite sturdy, easy to carry in your pocket. Wide Application：Our helmet password lock ideal for most purpose, such as lock bike motorcycle helmet, bicycles wheels, scooters, fence, strollers, ladders, skateboards, garden furniture and etc.