Strength Alloy Steel Chain The inner chain is 5.7 mm of grade alloy steel, designed to resist cutting and tampering. A protective coating reduces the risk of scratching and enhances durability, providing reliable security and long service life. Secure 5Digit Password The lock uses a 5digit code with 100,000 possible combinations, making it resistant to guessing. It is a keyless solution—no need to carry a key. Simply enter the correct code to unlock. Suitable For Bicycles and Motorcycles With a 90 cm (35.4 in) length, this chain can secure a wheel to posts, trees, railings and other fixtures. It is also versatile for locking doors, yard fences, sports equipment, barbecues, ladders and other items you need to protect. Easy To Set Your Combo Default code is 00000. To set a code: Turn the plastic knob 90 degrees clockwise to the designated position. Set a code (we recommend starting with 00001 and ensuring the numbers line up with the pointer). the knob to the original position. The password is set successfully. Use scenarios Locking a bicycle or motorcycle in a public area by looping the chain through the wheel and a fixed support. Securing doors, yard fences, or entry points at home or in a to deter casual theft. Safeguarding outdoor equipment such as sports gear, barbecues, ladders or other items stored in the yard or garage.