Kryptonite KryptoLok ATB U-Lock

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 2 stainless steel keys Key Safe Program   Patents 6397648B1, 9079626B2 , 9670698 Product dimensions: 5” x 9” (12.7cm x 22.9cm) Product weight: 3.2 lbs (1.45 kgs)