Kryptonite New York LS U-Lock

16mm hardened MAX-PERFORMANCE STEEL SHACKLE Patent-pending HARDENED DOUBLE DEADBOLT design gives additional protection against twist and cut attacks HIGHEST SECURITY DISC-STYLE CYLINDER is pick and drill resistant Sliding dustcover to PROTECT FROM DIRT AND DEBRIS 3 STAINLESS STEEL KEYS - including new design and one LED REPLACEABLE KEY FOB Key Safe Program Protective vinyl coating *NOT Compatible with Transit FlexFrame-U Bicycle Bracket Product dimensions: 4” x 10.25” (10.2cm x 26cm) Product weight: 4.85 lbs (2.20 kgs)