The Item Is A 16Mm Bicycle Lock With A Shackle, Mounting Holder,, Theft Lock. ?Security and Anti Theft?This bike u lock is made of 0.64" steel for high security and cut resistance. As one of the must-have bicycle accessories, the Sigtuna Bike Lock is anti-saw and anti-theft. And the vinyl coating of the bike lock protects the bike from scratches. ?Longer Design?The interior locking size is 4.5"x10.25" and the cable dimension is 12mm x 1.2m/ 4ft. Measure your bike in advance to ensure you find the right fit. ?Portable and Durable?This bicycle lock comes with a mounting bracket and 3 keys for convenient multi-location. And the waterproof and rust-proof features ensure a longer lifetime. ?Package Includes?1*steel bike lock, 1* 12mm x 4ft cable for additional security, 1*mouting bracket, 3*keys, and 2* extra mounting screws for quick assembly. ?Buy with Confidence?Sigtuna offers a 100% Satisfied GUARANTEE if you are unsatisfied with the product after the free trial. We stand for our products and will always stand by for better service.