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, a hardened steel shackle which resists hacksaw attacks and is double bolted 30mm and above for increased shackle strength. Long shackle (HB) version available : For most security needsOverall width: 38 mmOverall height: 102 mmOverall depth: 13 mm Shackle width: 20.5 mm I.D.Shackle height: 63 mmShackle Dia: 6.5 mm