Kryptonite New York Chain With Evolution Series 4 Disc Lock Features: Available in two chain sizes: 3.25' (8.65lbs) or 5.5' (13.15libs) 12mm six-sided chain links made of 3t hardened manganese steel for maximum strength Durable, protective nylon cover with hook-n-loop fasteners to hold in place Includes Evolution series 4 Disc Lock with 14mm MAX-Performance steel shackle Patented oval hardened steel crossbar for extra security Hardened double deadbolt locking for extensive holding power High security disc-style cylinder with reinforced anti-drill, anti-pull protection system Sliding dustcover protects and extends cylinder life 3 stainless steel keys one lighted with high intensity bulb and replaceable battery Key Safe Program Note: Due to manufacturer restrictions, Kryptonite products can only be shipped to addresses within the United States. Note: On eligible locks, customers can opt into Kryptonite's Anti-Theft Protection Offer (Atpo). Purchase a 1-year or 2-year plan for up to 5,000 dollars in theft coverage. Atpo is only available on locks with a Security Rating of 5/10 or greater. See full details, verify eligibility and get registered here.