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 replaceable key fob • Includes Flexframe-U bracket providing convenient multi-location u-lock transport • Key safe program • Protective vinyl coating • Product dimensions: 4” x 8” (10.2cm x 20.3cm) • Product weight: 4.45 lbs (2.02 kgs)