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: 29 mmOverall height: 44 mmOverall depth: 12 mm Shackle width: 14.5 mm I.D.Shackle height: 13.5 mmShackle Dia: 4.5 mm