Bike Lock, Portable Compact Folding Chain, Folding Aluminum Alloy Lock With Keys Sturdy and Durable The folding bicycle lock is made of super strong aluminum alloy, which is sturdy, cut and shear resistant, and has high torsion and tensile strength. Foldable Design The 26-joint foldable lock can be rotated 360 degrees, which is easy to fold and makes it more convenient to install and carry. Dimensions folded 7.4 x 7.4 x 5.3cm. Extended size: 85cm. With 3 Keys 3 keys for more convenience You can use one of the keys for daily use and leave the other key at home, in case you accidentally lose a key. The key can only be removed in the locked state to avoid losing it. Protective Layer The chain is made of waterproof and dustproof ABS rubber paint, which can effectively protect it against rust, oxidation and corrosion. This can greatly extend the life of the lock and prevent it from damaging the bicycle frame. Multifunction Ideal for Bikes, Skateboards and Fences, Fences, Motorcycle and Skateboards. Folding bicycle lock Bicycle lock Expand the locking area. Folding size: 7.4 x 7.4 x 5.3cm Length of the open lock: about 85cm