Key Features:14mm hardened MAX-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,Anti-rattle bumpers reduce noise during transport,New dust cover,New smaller crossbar design,Includes Transit FlexFrame-U transportation system which allows for versatile carrying,Protective vinyl coating,3 stainless steel keys – one lighted with high intensity LED bulb & replaceable battery,Key Safe Program,Rated 8/10 on Kryptonite's security scale,Optional ATPO - £ 2,000,Product dimensions: 4” x 9" (10.2cm x 22.9cm),Product weight: 3.5 lbs (1.59 kgs),Sold Secure Bicycle Gold certified.