Material: High strength zinc alloy lock head, anti-theft against rust and corrosion. The surface of the bicycle lock cable is made of PVC material, prevents scratches and is much softer and more comfortable. Easy to carry: Net weight: about 100g, the length of the single lock is 18cm, the diameter of the circle is 11cm, soft and comfortable, mini and portable. You can put it in your pocket or hang it in your arm or bike frame. Free combinationIf you have more than two Jingminging mini bike locks, you can freely combine them to form a larger, infinite and widely used lock. Security & Resettable & Combination Bike Lock 4 Digits 4-digit resettable combination smart bike lock, 10,000 code combinations can be selected, the original code is 0000 Multi-function: Not only used in bicycles / electric bicycles, but also in other outdoor / sports equipment (eg scooter, gate, etc.). With regular lubrication of the keyhole and the keyhole, the service life of the lock can be effectively extended. Technical specifications of the Jinginginginginginginginginginging mini padlock: Net weight: 100g. Material: zinc alloy, PVC. Length: 18cm Circle diameter: 11cm With a 4-digit padlock, there are 10,000 possible combinations. This makes it virtually impossible for a thief to guess your number. Set your own digital code. 1. The preset code is "0000". 2. To change the number combination, open the lock. 3. Turn the ribbed wheel 90 degrees to the right. 4. Set your desired code. 5. Turn the wheel 90 degrees to the left to the starting position. 6. Your own code has been set. Package includes: 1 x bicycle lock.