Kryptonite Evolution Series U-Lock - 3.25 x 7", Keyed, Black, Includes 4' cableThis lock is constructed of hardened steel and provides high security. Secure disc style cylinder resist picking and drilling Short crossbar and shackle create a compact fit providing better security Hardened MAX Performance, 13mm steel shackle resists bolt cutters and leverage attacks Transit Flex Frame Bracket system fits on the adjustable spline and allows for multiple, off set fitments to better align the lock for transportation Includes three