A high security U-lock at a great price, Kryptonite has enhanced the Kryptolok with a new steel shackle and improved locking mechanism, maintaining its top-tier status. The extended steel shackle allows for versatile locking options and resists cutting attempts. This lock stands strong against hammers and bolt cutters, ensuring superior security. Features: 12.7mm hardened performance steel shackle New patent-pending hardened double deadbolt design gives additional protection against twist 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 New dust cover Includes flexframe-u bracket providing convenient multi-location u-lock transport Protective vinyl coating Key Safe Program Product dimensions: 10.2cm x 22.9cm Product weight: 1.32 kgs