This lock is constructed of hardened steel and provides high security. Features: Secure disc-style cylinder resist picking and drilling Short crossbar and shackle create a compact fit providing better security Hardened double deadbolt design gives additional protection against twist attacks 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 stainless steel keys - two standard "I" keys and one LED lighted key Reinforced cuff over hardened crossbar and cylinder protects high security disc-style cylinder High security Bent Foot design Center keyway defends against leverage attacks Security Rating: 7 out of 10