ABUS 55 Series solid brass body padlock with the inner components made from non-corrosive materials. Pin tumbler cylinder with anti-pick mushroom pins which resists picking and a hardened steel shackle which resists hacksaw attacks and is double bolted 30mm and above for increased shackle strength. Long shackle (HB) version available.Shackle made from hardened steel. Overall width: 24 mmOverall height: 38 mmOverall depth: 10 mm Shackle width: 12 mm I.D.Shackle height: 10.5 mmShackle Dia: 4 mm