Usage Tips:[Limited Time]Our bicycle lock is made of a special RS18 high-strength alloy material, which has triple cut resistance and higher durability. Only 5% of similar padlocks on the market use this material. There is a 5-digit bicycle lock combination that cannot be cracked without a key. Our bicycle lock cords provide you with the best safety and portability. Take your car to enjoy your trip, you will fall in love with them for no reason! [Save money] Don't waste money buying other cheap bicycle lock cables. We are the largest manufacturer of such locks in the world. Products are exported to Europe and the United States, and are Amazon's s of the year. We provide the best quality bicycle chains at reasonable prices. Don't hesitate to add it to your shopping basket now! [Free brackets and crafts] Order now and get the stroller bracket scooter lock free anti-theft (limited time). It can be easily placed around the bicycle saddle. With 5 combination bicycle locks, the lock has 10,000 possibilities, you can easily set your unique personalized number combination without forgetting to carry the bicycle lock key! The high-quality PVC outer plastic sleeve and alloy padlock core are corrosion-resistant, wear-resistant and cut. The thief is far away from your bike! [Multi-function] Protect your bicycles, electric bicycles, motorcycles, scooters, gates, fences, barbecue grills, lawn mowers, garden sports equipment, outdoor gates, professional bicycle toolboxes, ladders, etc.! No matter where you are, it can eliminate your worries. It will be your best life partner! Product Please note: 1. When setting a security password, please make sure that the numbers are on the same straight line. 2. Write down the photos or notes to avoid forgetting to set the number and keep it in a safe place. 3. Unlocking method: Set the unlocking number to the number setting position, and then pull out the lock. Specification: Standard: 5-digit dialing Size: Diameter 12mmLength 1200mm Weight: 400g Material: iron wire, steel, copper Suitable for bicycle frames with a diameter of 2.5 to 3 cm Mountain bike lock Bicycle lock 120mm BAK Lock High Security Fixing method of lock clip: 1. Put the rubber pad on the pole. 2. Install the lock buckle to wrap the rubber pad. Tighten the screws to secure the locking bracket. 3. Align the connecting protrusion on the left side of the dial with the groove on the lock frame. Press the red button and push the protrusion into the notch. 4. Make sure that the bicycle lock is secure. How to set the unlock number: The initial setting is 0-0-0-0-0 to unlock. Please change the unlock number after purchase. 1. Dial the initial password "00000" and pull out the key. 2. After removing the key, turn the "SET" button in the direction of the arrow until it clicks 90 degrees to the right. How to set the unlock number: 2. After removing the key, turn the "SET" knob in the direction of the arrow until it clicks 90 degrees to the right. 3. Set the desired number while rotating 90 degrees clockwise. 4. After the setting is completed, restore the "SET" knob to its position. 5. Insert the lock and change the unlocking number to another number to complete the unlocking.