Anti Theft Cycle Chain Lock Key benefits 5digit combination for secure, key access. There is a wide range of possible codes to reduce the risk of guessing. Heavyduty protection. Constructed with a manganese steel chain and a zinc alloy cylinder to resist cutting and prying, delivering strong security for your bicycle. Surface protection and longevity. Features a soft, abrasionresistant fabric cover that helps prevent rust and paint damage, extending the life of both the lock and your bike. Easy to set and change. Use the RESET knob to your password: rotate 90 degrees to the right to set, then turn left to save. Avoid the default 00000 for better security. Specifications and construction Material: chain made from manganese steel; zinc alloy cylinder for robust protection. Cover: soft, abrasionresistant fabric that protects against rust and paint damage. Security feature: 5digit combination with a wide code range for keyless access. How to use Set your own combination by turning the RESET knob 90 degrees to the right, enter your chosen digits, then turn the knob to the left to confirm. This replaces the default 00000 code and enhances security. Use scenarios Urban commuting and quick stops: secure your bicycle at shops or cafs while you run errands. Campus or apartment complex parking: keep your bike safe during classes or short visits. Outdoor recreation and parks: leave your bicycle secured while you enjoy nearby activities.