OnGuard Bulldog Mini U-Lock Cable Included: No Diameter: 13 mm Length: 7 ins Lock Style: Keyed Shackle Width: 3.5 insBulldog includes free 1-year, anti-theft guarantee4.6 Tons pull strength with anti-drill and pick resistanceHardened ultra steel shackle with reinforced sleeve over crossbar and cylinder for added security13mm hardened ultra steel shackle