SECURE & RESETTABLE: 5-digit resettable combination bike chain lock, much safer than other 4 digit locks. Easy to set your own personalized number combination.

STURDY & DURABLE: It's hard to break through as the lock cylinder of the bike lock is made of zinc alloy. The bicycle chain lock is made of 0.24 inch alloy steel which is drill-resistant and anti-tech unlocking.Safety tip: Please do not leave your bike out of your sight for too long, especially in high crime areas.

SCRATCH-PROOF FABRIC PROTECTION: The bicycle chain lock is wrapped by a high quality polypropylene fabric, which is scratch-proof and wear-resistant, anti-hot and anti-icing hands; it protects the chain and prevents it scratching your bicycle frame, long lifespan.

CONVENIENT TO USE: Combination locking mechanism provide keyless convenience and set your own password by easy steps. With keyless convenience lock, you don’t worry about lost the key and forget to carry it.Code design saves you from the hassle of carrying keys. The code is resettable - there are 10,000 combinations you can set, which makes the chances to crack the code only 1/10,0000. The default code is 00000.

MULTI-PURPOSE: The chain lock is 3.2 feet and weighs about 1.45 pounds, long enough to lock 2-3 bikes together, or lock your bike to a tree, gate, fence, railing, thick pole and others. The lock can also be used for motorcycles, scooters, skateboards, grills, ladders, doors, lawnmowers and many others.

KINDLY REMINDER:The lock head's diameter is around 1.25"/3.2 cm, satisfying the security demand of nearly all kinds of bike wheels currently on sale. Nevertheless, if you have Scooter, e-bike or any thing with wheel gap/hole less than 1.25"/3.2 cm, the lock will not be able to pass through the wheel. In this case, we kindly suggest that you may lock the scooter by wrapping around it rather than passing through the wheel gap.