KryptoLok series 2 Standard features a reinforced hardened CROSS BAR DESIGN and provides increased protection. HIGH SECURITY DISC-STYLE CYLINDERANTI-RATTLE BUMPERS reduce noise during transport. ROTATING DUSTCOVER protects cylinder Includes NEW TRANSIT FLEXFRAME-U transportation system which allows for versatile carrying. FEATURES a 12.7mm hardened performance steel shackle a New Patent-pending hardened double deadbolt design gives additional protection against twist attacks a High security disc-style cylinder is pick and drill resistant a Includes 2 stainless steel keys, with ergonomic design to reduce the amount of torque, and keep them from bending or breaking a New dust cover a Includes flexframe-U bracket providing convenient multi-location U-lock transport a Protective vinyl coating a 2 stainless steel keys a Key Safe Program a Product dimensions: 4" x 9" (10.2cm x 22.9cm) a Product weight: 2.9 lbs(1.32 kgs)