Kryptonite Kryptolok Standard U-Lock with 4' Flex Cable12. 7mm hardened PERFORMANCE STEEL SHACKLE Patented HARDENED DOUBLE DEADBOLT DESIGN gives additional protection against twist and cut attacks. HIGH SECURITY DISC STYLE CYLINDER is pick and drill resistant Includes 2 STAINLESS STEEL KEYS, with ergonomic design to reduce the amount of torque, and keep them from bending or breaking Includes 4 KRYPTOFLEX DOUBLE LOOPED CABLE for securing front wheel or accessories NEW DUST COVER Includes FLEXFRAME U