Secure 5-Digit Password Combination It offers 100,000 password combinations, 10 times harder to crack than a 4-bit password, making it almost impossible to crack. Save the trouble of carrying the key, just enter the password to unlock, very convenient High Strength Alloy Steel Chain The inner chain is 5.7mm high quality alloy steel and will not be cut and opened by thieves. Durable and safe to provide cut resistance and a protective cover to prevent scratches Easy to Set Up Your Combo Default code is 00000.Turn the plastic knob 90 degrees clockwise to the designated position, then set a new code (it is recommended set 00001 first, making sure the digits are aligned with the pointer). Then return the knob to its original position. The new password is successfully set! Suitable For Bikes & Motorcycles With 90cm (35.4inch) length, you can lock the wheel to poles, trees, railings and other accessories. It can also be used to lock doors, garden fences, sports equipment, barbecues, ladders, anything you need to lock Protective Fabric Cover A special rain, dust and chafe proof fabric cover on the outside of the chain, which plays a good role in protecting the chain and making the lock of more durable chain. The cover also keeps your hands away from the metal chain, making it more user-friendly. If you have any problems, questions or concerns. Please contact us! Product description Bike Chain Lock This is a strong, durable and practical chain lock! It can be used to lock bikes, motorcycles, gates, yard fences, sports equipment, barbecues, ladders and other things you need to lock. The 5-digit password forms a huge group of password data, with 100,000 password combinations to provide sufficient security. You no longer need to lock the bike with a key! How to define your own digital code? (The preset code is " 00000 ") Dial the combined wheels on 00000 and remove the cableTurn the knob clockwise inside the lock to the end Configure the desired code (Don't forget to take photos or videos to save new passwords) After configuration, return the button to its original position and the new code is now complete Repeat steps 1-4 above to reset the code at any time. Note: When resetting the password, please take a photo to save the new password. If you forget the password or remember an incorrect password, you will not be able to open it! Set the password for the first time, it is recommended to set it to 0-0-0-0-1. Once you have familiarized yourself with it, set it to your frequently used password (by heart) Protective Fabric Cover A special rain, dust and friction proof fabric cover on the outside of the chain, which plays a good role in protecting the chain and making the chain lock more durable. The cover also keeps your hands away from the metal chain, making it more user-friendly. Features: Material: alloy steel, environmental ABS Chain length: 90cm (35.4in) Weight: 640g Passport number: 5 Combination number: 100,000 Package included: 1 x chain lock 1 x manual High Strength Alloy Steel Chain The inner chain is made of high quality 5.7mm alloy steel and will not be cut and opened by thieves. Durable and safe, if you are a bike lover, this sturdy and portable chain lock will be perfect for you! Secure 5-Digit Password CombinationIt offers 100,000 password combinations. Save the trouble of carrying the key, just enter the password to unlock, very convenient. If you don't want to take a variety of key chains to go out, choosing this combination lock will be very convenient!