YALE High Security D-Lock D-locks are the most widely used bicycle security solution. The new High Security D-lock from Yale are both convenient, strong and secure. Constructed from ultra hardened steel, and with double point locking technology, they are designed to resist all forms of attack. The High Security D-Lock is independently tested achieving a Sold Secure Gold rating and carry a five year guarantee. Featuring new pick, pull and bump resistant mechanisms and a longer shackle allowing wider and easier locking options when out on a ride. Usability features include a double rubber coating to protect paint and internals and 4 laser cut keys (including 1 with micro-light). For peace of mind, protect your bike with Yale. Key features and benefits include: High Security lock provides resistance from pick, pull and drill attacks Double point locking heavy duty crossbar provides maximum pull protection Ultra hardened shackle for high cut and impact resistance Double rubber protection against scratches New manual keyway seals to keep water, dirt and grit out of lock internals Bike bracket for storage included Supplied with 4 laser cut keys (1 with micro light) Conforms to Sold Secure Gold and has a five year guarantee. About this item ULTRA HARDENED SHACKLE for maximum cut and impact resistance DOUBLE POINT LOCKING HEAVY DUTY CROSSBAR provides high pull protection HIGH SECURITY LOCK provides resistance from pick, pull, bump and drill attacks DOUBLE RUBBER BUMPER for protection against scratches 4 LASER CUT KEYS INCLUDING 1 WITH MICRO-LIGHT Dimensions: Height: 230mm Width: 115mm Diameter: 13mm Weight: 1.2kgs