The New York 18mm 4x10.25`/10.7x26cm Keyed U-Lock is equipped with a hardened steel shackle that provides maximum protection against bolt cutters and leverage attacks. Its patented oversized sleeve and double deadbolt locking system offer extra security. The high security disc style cylinder and center keyway further defend against leverage attacks. In addition, the protective vinyl cover prevents frame scratching and the sliding dustcover extends the lifespan of the cylinder. This product includes 3 keys, including 2 regular keys and 1 key with a LED light for convenience.