Key Features: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 replacement key fob,Key Safe Program,Protective vinyl coating,Product dimensions: 4” x 10.25” (10.2cm x 26cm),Product weight: 4.85 lbs (2.20 kgs).