[Material] High-strength zinc alloy lock, anti-theft, anti-rust, and anti-corrosion. The surface of the bicycle lock line is made of PVC material to prevent scratches and make it softer and more comfortable. [Easy to carry] Net weight: about 100g, padlock length 18cm, circle diameter 11cm, soft and comfortable, mini portable. You can put it in your pocket or hang it on your arm or bicycle rack. 4-digit security and combination bicycle lock-4-digit resettable combination smart padlock-10,000 password combinations to choose from, the original password is 000.1. Align the initial password with the position marked by the arrow 2. Turn the padlock as shown. 3. Rotate the dial to set the required password. 4. Return the lock to the starting position and the password setting is successful. [Multi-purpose] Not only for bicycles/electric bicycles, but also for other outdoor or sports equipment (such as scooters, gates, etc.). Regularly lubricate keyholes and keyhole locks to effectively extend the service life of the lock.